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#3 Counterbore Screws
12-point Flange Screws, Counterbore Screws, Ferry Head Cap Screws or Counterbore Screws, feature a 12 point head and a flanged bearing surface. Usually fully threaded, the 12-point design provides for higher tightening torque, without edge rounding and they are covered under ASME Standard B18.2.1
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| Search Results Sponsored by Metric Threaded Products, Inc., your source for 12 Point Flange Screws. For more results, visit www.metric-threaded.com | ||||||||
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| Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
| MTP | CA | 12 Point Flange Screw (CounterBore) | Steel | Zinc/Clear | 3/8-16 x 1 | 3/8-16 x 1 zinc 12 point flange screws | stock |
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| MTP | CA | 12 Point Flange Screw (CounterBore) | Steel | Zinc/Clear | 3/4-16 x 2 1/2 | 3/4-16 x 2 1/2 alloy zn 12 point flange screws 25 | 60 |
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| MTP | CA | 12 Point Flange Screw (CounterBore) | Steel | Black Oxide | 3/8-16 x 2 3/4 | 12 pt flange screw alloy | 100 |
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| MTP | CA | 12 Point Flange Screw (CounterBore) | Steel | Black Oxide | 3/8-16 x 2 | 12 pt flange screw alloy | 200 |
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| TownCountry | AR | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8 x 3/16 | adjustable counterbore #5 | 4 |
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| SIS | AZ | 12 Point Flange Screw (CounterBore) | Steel | Zinc/Clear | #3-48 x 1/265 | 3-48x.565 spl hex head w/o header pt stl zinc rohs waxed wax | 37900 |
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| CIF | IL | 12 Point Flange Screw (CounterBore) | Superalloy (Inconel, Hastelloy, Alloy 20) | Passivated | 3/8-24 x 5/8 | 3/8-24x5/8 12 point flange screw 17-4 phillips ss cond h900 passivated per astm a967 per print (5) (5) (5) () | 5 |
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| SRF | AL | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 5/8 | 12 pt counterbore screw | - |
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| SRF | AL | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 5/8 | 12 pt counterbore screw | - |
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| Delta | TX | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 5/8 | 12 pt countr-bor plain 3/8-16 x 5/8 | 1000 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 3/4 | 3/8-24 x 3/4 12 point cap screw alloy b18.2.1 | 90 |
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| Jackson | MS | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 3/4 | nc ferry c/s 170m psi 12-pt fl/b finish | 36 |
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| Wurth Ada | MN | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 3/4 | scr 12pt flange alloy (pl) 3/8-24x3/4 | 600 |
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| Wurth Ada | MN | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 3/4 | scr 12pt flange alloy (pl) 3/8-16x3/4 | 300 |
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| Valley Nu | WA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 3/4 | nc 12 pt fl/b pl | 172 |
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| Valley Nu | WA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 3/4 | nf 12 pt fl/b pl | 25 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 7/8 | 3/8-24 x 7/8 12 point cap screw alloy b18.2.1 | 41 |
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| Valley Nu | WA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 7/8 | nc 12 pt fl/b pl | 94 |
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| ASMC | IL | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 7/8 | 3/8-24x7/8 fine 12-point flange screw alloy pln | 50 |
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| Jackson | MS | 12 Point Flange Screw (CounterBore) | Steel | Zinc/Clear | 3/8-24 x 1 | nf ferry c/s | 35 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 1 | 3/8-16 x 1 12 point cap screw alloy b18.2.1 | 44 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 1 | 3/8-16 x 1 12 point cap screw alloy b18.2.1 | 140 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 1 | 3/8-24 x 1 12 point cap screw alloy b18.2.1 | 60 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 1 | 3/8-24 x 1 12 point cap screw alloy b18.2.1 | 40 |
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| Weaver | WA | 12 Point Flange Screw (CounterBore) | Grade 8 | Plain | 3/8-16 x 1 | 3/8-16x1 gr8 12pt hd flange bolt plain | 200 |
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| Weaver | WA | 12 Point Flange Screw (CounterBore) | Grade 8 | Plain | 3/8-24 x 1 | 3/8-24x1 gr8 12pt hd flange bolt plain | 50 |
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| MTP | CA | 12 Point Flange Screw (CounterBore) | Steel | Zinc/Clear | 3/8-16 x 1 | 3/8-16 x 1 zinc 12 point flange screws | stock |
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| Valley Nu | WA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 1 | nc 12 pt fl/b pl | 3 |
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| Valley Nu | WA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 1 | nf 12 pt fl/b pl | 55 |
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| American | NY | 12 Point Flange Screw (CounterBore) | Steel | Cadmium | 3/8-24 x 1 | fl/b 12 pt cad pl | 400 |
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| Jackson | MS | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 1 | nf ferry c/s | 28 |
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| Jackson | MS | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 1 | nc ferry c/s | 68 |
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| Delta | TX | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 1 | 12 pt countr-bor plain 3/8-16 x 1 | 100 |
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| Delta | TX | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 1 | 12 pt countr-bor plain 3/8-24 x 1 (FINE THREAD) | 67 |
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| FMP | MA | 12 Point Flange Screw (CounterBore) | Grade 8 | Plain | 3/8-16 x 1 | 12-point external wrenching bolt | 100 |
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| Jackson | MS | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 1 1/4 | nf ferry c/s | 3 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 1 1/4 | 3/8-24 x 1 1/4 12 point cap screw alloy b18.2.1 | 60 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 1 1/4 | 3/8-24 x 1 1/4 12 point cap screw alloy b18.2.1 | 20 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Zinc/Clear | 3/8-24 x 1 1/4 | 3/8-24 x 1 1/4 12 point cap screw alloy znc b18.2.1 | 2224 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 1 1/4 | 3/8-16 x 1 1/4 12 point cap screw alloy b18.2.1 | 3 |
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| Weaver | WA | 12 Point Flange Screw (CounterBore) | Grade 8 | Plain | 3/8-16 x 1 1/4 | 3/8-16x1 1/4 gr8 12pt hd flange bolt plain | 300 |
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| Weaver | WA | 12 Point Flange Screw (CounterBore) | Grade 8 | Plain | 3/8-24 x 1 1/4 | 3/8-24x1 1/4 gr8 12pt hd flange bolt plain | 50 |
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| ACCURATE | IL | 12 Point Flange Screw (CounterBore) | Grade 8 | Plain | 3/8-16 x 1 1/4 | 12-pt flange scr gr8 counter-bor | 435 |
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| SRF | AL | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 1 1/4 | 12 pt counterbore screw | 98 |
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| Jackson | MS | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 1 1/4 | nc ferry c/s | 100 |
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| Delta | TX | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-10 x 1 1/4 | 12 pt countr-bor plain 3/4-10 x 1 1/4 | 77 |
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| All Size | TX | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 1 1/4 | 3/8-16 x 1 1/4 12 point flange bolt plain b18.2.1 | 50 |
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| ISSCO | MO | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 1 1/4 | 12 point counterbore screw | 500 |
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| WDMB | IA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 1 1/4 | screw 12pt flange all zf 3/8-24x1 1/4 drw (W030) (W030) | 58 |
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| QFC | TX | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8 x 1 1/4 | 3/8x1 1/4nc ferry head cap scr b18.2.1 | 100 |
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| Jackson | MS | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 1 1/2 | nf ferry c/s | 86 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 1 1/2 | 3/8-16 x 1 1/2 12 point cap screw alloy b18.2.1 | 111 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 1 1/2 | 3/8-24 x 1 1/2 12 point cap screw alloy b18.2.1 | 72 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 1 1/2 | 3/8-24 x 1 1/2 12 point cap screw alloy b18.2.1 | 50 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-16 x 1 1/2 | 3/4-16 x 1 1/2 12 point cap screw alloy b18.2.1 | 25 |
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| Weaver | WA | 12 Point Flange Screw (CounterBore) | Grade 8 | Plain | 3/8-16 x 1 1/2 | 3/8-16x1 1/2 gr8 12pt hd flange bolt plain | 200 |
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| Weaver | WA | 12 Point Flange Screw (CounterBore) | Grade 8 | Plain | 3/8-24 x 1 1/2 | 3/8-24x1 1/2 gr8 12pt hd flange bolt plain | 50 |
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| ASMC | IL | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-16 x 1 1/2 | 3/4-16x1 1/2 fine 12-point flange screw alloy pln b18.2.1 | 15 |
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| Valley Nu | WA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 1 1/2 | nc 12 pt fl/b pl | 4 |
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| Valley Nu | WA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-10 x 1 1/2 | nc 12 pt fl/b pl | 25 |
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| Valley Nu | WA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 1 1/2 | nf 12 pt fl/b pl | 140 |
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| MidStates | MI | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-16 x 1 1/2 | 12pt fl/b sc-cntrbore | 12 |
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| BHAM | TX | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 1 1/2 | (12-pt) counterbore | 549 |
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| Future Fastener | TX | 12 Point Flange Screw (CounterBore) | Steel | Black Oxide | 3/4-10 x 1 1/2 | 3/4-10 x 1 1/2 ferry head cap screw blk | 16 |
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| Future Fastener | TX | 12 Point Flange Screw (CounterBore) | Steel | Black Oxide | 3/8-16 x 1 1/2 | 3/8-16 x 1 1/2 ferry head cap screw blk | 14 |
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| Jackson | MS | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 1 1/2 | nc ferry c/s | 24 |
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| Delta | TX | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-10 x 1 1/2 | 12 pt countr-bor plain 3/4-10 x 1 1/2 | 140 |
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| Delta | TX | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 1 1/2 | 12 pt countr-bor plain 3/8-24 x 1 1/2 (FINE THREAD) | 52 |
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| All Size | TX | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-10 x 1 1/2 | 3/4-10 x 1 1/2 12 point flange bolt plain b18.2.1 | 160 |
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| ISSCO | MO | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 1 1/2 | 12 point counterbore screw | 220 |
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| WDMB | IA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-10 x 1 1/2 | screw 12pt flange alloy (pl) 3/4-10x1 1/2 (W020) (W020) (W020) | 3,249 |
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| WDMB | IA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-16 x 1 1/2 | screw 12pt flange all zf 3/4-16x1 1/2 drw (W030) | 143 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 1 3/4 | 3/8-24 x 1 3/4 12 point cap screw alloy b18.2.1 | 39 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 1 3/4 | 3/8-24 x 1 3/4 12 point cap screw alloy b18.2.1 | 30 |
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| B & K FAST | PA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 1 3/4 | 3/8-16 x 1 3/4 12 pt flange bolts b18.2.1 | 2 |
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| ACCURATE | IL | 12 Point Flange Screw (CounterBore) | Grade 8 | Plain | 3/8-16 x 1 3/4 | 12-pt flange scr gr8 counter-bor | 139 |
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| ACCURATE | IL | 12 Point Flange Screw (CounterBore) | Grade 8 | Plain | 3/8-24 x 1 3/4 | 12-pt flange scr gr8 counter-bor | 184 |
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| Valley Nu | WA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 1 3/4 | nc 12 pt fl/b pl | 32 |
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| Valley Nu | WA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 1 3/4 | nf 12 pt fl/b pl | 97 |
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| BHAM | AL | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 1 3/4 | 12 pt counterbore bolt | 41 |
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| Jackson | MS | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 1 3/4 | nf ferry c/s | 22 |
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| Jackson | MS | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-10 x 1 3/4 | nc ferry c/s | 4 |
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| Jackson | MS | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 1 3/4 | nc ferry c/s | 35 |
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| Jackson | MS | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-16 x 1 3/4 | nf ferry c/s | 39 |
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| Delta | TX | 12 Point Flange Screw (CounterBore) | Steel | Zinc/Clear | 3/4-10 x 1 3/4 | 12 pt countr-bor zinc 3/4-10 x 1 3/4 | 60 |
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| Delta | TX | 12 Point Flange Screw (CounterBore) | Grade B7M | Plain | 3/4-10 x 1 3/4 | 12 pt countr-bor a193-b7m 3/4-10 x 1 3/4 (WITH PHOSPHATE COATING) | 200 |
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| Delta | TX | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 1 3/4 | 12 pt countr-bor plain 3/8-16 x 1 3/4 | 75 |
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| ISSCO | MO | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-10 x 1 3/4 | 12 point counterbore screw | 142 |
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| Jackson | MS | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 2 | nc ferry c/s | 49 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 2 | 3/8-24 x 2 12 point cap screw alloy b18.2.1 | 100 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 2 | 3/8-24 x 2 12 point cap screw alloy b18.2.1 | 15 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 2 | 3/8-16 x 2 12 point cap screw alloy b18.2.1 | 56 |
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| Weaver | WA | 12 Point Flange Screw (CounterBore) | Grade 8 | Plain | 3/8-16 x 2 | 3/8-16x2 gr8 12pt hd flange bolt plain | 200 |
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| Weaver | WA | 12 Point Flange Screw (CounterBore) | Grade 8 | Plain | 3/8-24 x 2 | 3/8-24x2 gr8 12pt hd flange bolt plain | 50 |
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| Weaver | WA | 12 Point Flange Screw (CounterBore) | Grade 8 | Plain | 3/4-16 x 2 | 3/4-16x2 gr8 12pt hd flange bolt plain | 10 |
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| QFC | TX | 12 Point Flange Screw (CounterBore) | Steel | Zinc/Clear | 3/4-10 x 2 | 3/4-10x2 ferry head c/s 170ksi mech zinc mtrs must show hrc 37-45 and chemistry b18.2.1 | 74 |
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| Future Fastener | TX | 12 Point Flange Screw (CounterBore) | Steel | Black Oxide | 3/4-16 x 2 | 3/4-16x2 ferry hd cap screw blk | 900 |
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| Valley Nu | WA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 2 | nc 12 pt fl/b pl | 2 |
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| Valley Nu | WA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 2 | nf 12 pt fl/b pl | 54 |
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| GLF | OH | 12 Point Flange Screw (CounterBore) | Superalloy (Inconel, Hastelloy, Alloy 20) | Plain | 3/8-24 x 2 | 3/8-24x2 12-pt flange bolt 17-4 ph s/s b18.2.1 () () () | 49 |
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| GLF | OH | 12 Point Flange Screw (CounterBore) | Superalloy (Inconel, Hastelloy, Alloy 20) | Plain | 3/8-16 x 2 | 3/8-16x2 12-pt flange bolt 17-4 ph s/s b18.2.1 () () () | 50 |
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| Endries | WI | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 2 | 3/8-16x2 alloy stl 170 000 psi 12 point flange screw plain | 100 |
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| Jackson | MS | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-16 x 2 | nf ferry c/s | 75 |
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| Delta | TX | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-10 x 2 | 12 pt countr-bor plain 3/4-10 x 2 | 57 |
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| Delta | TX | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 2 | 12 pt countr-bor plain 3/8-16 x 2 | 75 |
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| All Size | TX | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 2 | 3/8-16 x 2 12 point flange bolt b18.2.1 | 54 |
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| ISSCO | MO | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 2 | 12 point counterbore screw | 185 |
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| ISSCO | MO | 12 Point Flange Screw (CounterBore) | Steel | Cadmium | 3/4-10 x 2 | 12 point counterbore screw | 115 |
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| ISSCO | MO | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-16 x 2 | 12 point counterbore screw | 73 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 2 1/4 | 3/8-24 x 2 1/4 12 point cap screw alloy partial thread b18.2.1 | 183 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 2 1/4 | 3/8-16 x 2 1/4 12 point cap screw alloy b18.2.1 | 10 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 2 1/4 | 3/8-16 x 2 1/4 12 point cap screw alloy b18.2.1 | 50 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 2 1/4 | 3/8-24 x 2 1/4 12 point cap screw full thrd alloy b18.2.1 | 90 |
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| ASMC | IL | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-16 x 2 1/4 | 3/4-16x2 1/4 fine 12-point flange screw alloy pln b18.2.1 | 15 |
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| ASMC | IL | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 2 1/4 | coarse 12-point fl/b b18.2.1 | 9 |
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| SunPack | FL | 12 Point Flange Screw (CounterBore) | Grade B7 | Fluoropolymer-Based (Xylan, Fluorokote, Teflon) | 3/4-10 x 2 1/4 | 3/4-10x2-1/4 a193 b7 12pt ferry head bolt ptfe blue | 2 |
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| GLF | OH | 12 Point Flange Screw (CounterBore) | Superalloy (Inconel, Hastelloy, Alloy 20) | Plain | 3/8-24 x 2 1/4 | 3/8-24x2-1/4 12-pt flange bolt 17-4 ph s/s b18.2.1 () () () | 50 |
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| SunPack | FL | 12 Point Flange Screw (CounterBore) | Grade B7 | Fluoropolymer-Based (Xylan, Fluorokote, Teflon) | 3/4-10 x 2 1/4 | 3/4-10x2-1/4 a193 b7 12pt ferry head bolt ptfe blue | 2 |
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| SRF | AL | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-10 x 2 1/4 | 12 pt counterbore screw | 1 |
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| Future Fastener | TX | 12 Point Flange Screw (CounterBore) | Steel | Black Oxide | 3/4-10 x 2 1/4 | 3/4-10 x 2 1/4 ferry hd cap screw blk | 7 |
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| Future Fastener | TX | 12 Point Flange Screw (CounterBore) | Steel | Black Oxide | 3/4-16 x 2 1/4 | 3/4-16 x 2 1/4 ferry hd cap screw blk | 7 |
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| Delta | TX | 12 Point Flange Screw (CounterBore) | Steel | Zinc/Clear | 3/4-10 x 2 1/4 | 12 pt countr-bor zinc 3/4-10 x 2 1/4 (ZINC PLATED AND BAKED) | 462 |
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| Delta | TX | 12 Point Flange Screw (CounterBore) | Grade B7 | Plain | 3/4-10 x 2 1/4 | 12 pt cntr-bor b7 grn 3/4-10 x 2 1/4 (XYLAN 1425 GREEN) | 72 |
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| Delta | TX | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 2 1/4 | 12 pt countr-bor plain 3/8-16 x 2 1/4 | 102 |
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| All Size | TX | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 2 1/4 | 3/8-16 x 2 1/4 12 point flange bolt plain b18.2.1 | 89 |
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| All Size | TX | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-16 x 2 1/4 | 3/4-16 x 2 1/4 12 point flange bolt plain b18.2.1 | 12 |
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| All Size | TX | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 2 1/4 | 3/8-24 x 2 1/4 12 point flange bolt plain b18.2.1 | 142 |
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| ISSCO | MO | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 2 1/4 | 12 point counterbore screw | 205 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 2 1/2 | 3/8-24 x 2 1/2 12 point cap screw alloy b18.2.1 | 16 |
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| YANKEE | NH | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 2 1/2 | 3/8-16 x 2-1/2 12 point flange bolt-high tensile strength-alloy steel | 20 |
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| Weaver | WA | 12 Point Flange Screw (CounterBore) | Grade 8 | Plain | 3/8-16 x 2 1/2 | 3/8-16x2 1/2 gr8 12pt hd flange bolt plain | 460 |
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| Weaver | WA | 12 Point Flange Screw (CounterBore) | Grade 8 | Plain | 3/4-16 x 2 1/2 | 3/4-16x2 1/2 gr8 12pt hd flange bolt plain | 10 |
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| Valley Nu | WA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 2 1/2 | nc 12 pt fl/b pl | 170 |
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| GLF | OH | 12 Point Flange Screw (CounterBore) | Superalloy (Inconel, Hastelloy, Alloy 20) | Plain | 3/8-24 x 2 1/2 | 3/8-24x2-1/2 12-pt flange bolt 17-4 ph s/s b18.2.1 () () () | 150 |
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| ASMC | IL | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-16 x 2 1/2 | 3/4-16x2 1/2 fine 12-point flange screw alloy pln b18.2.1 | 15 |
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| Jackson | MS | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-16 x 2 1/2 | nf ferry c/s | 5 |
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| MTP | CA | 12 Point Flange Screw (CounterBore) | Steel | Zinc/Clear | 3/4-16 x 2 1/2 | 3/4-16 x 2 1/2 alloy zn 12 point flange screws 25 | 60 |
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| Delta | TX | 12 Point Flange Screw (CounterBore) | Steel | Phosphate | 3/8-24 x 2 1/2 | 12 pt countr-bor phos 3/8-24 x 2 1/2 | 75 |
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| Delta | TX | 12 Point Flange Screw (CounterBore) | Steel | Zinc/Clear | 3/4-10 x 2 1/2 | 12 pt countr-bor zinc 3/4-10 x 2 1/2 | 78 |
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| Delta | TX | 12 Point Flange Screw (CounterBore) | Grade B7M | Plain | 3/4-10 x 2 1/2 | 12 pt countr-bor a193-b7m 3/4-10 x 2 1/2 (PHOSPHATE COATING) | 50 |
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| Delta | TX | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 2 1/2 | 12 pt countr-bor plain 3/8-24 x 2 1/2 (FINE THREAD) | 78 |
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| ASMC | IL | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-10 x 2 1/2 | 3/4-10x2 1/2 coarse 12-point flange screw alloy pln unc | 64 |
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| ISSCO | MO | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 2 1/2 | 12 point counterbore screw | 133 |
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| ISSCO | MO | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-10 x 2 1/2 | 12 point counterbore screw | 1275 |
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| QFC | TX | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-10 x 2 1/2 | 3/4-10x2 1/2 ferry head c/s 170ksi plain mtrs showing hrc 37-45 and chemistry reqd b18.2.1 | 2 |
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| QFC | TX | 12 Point Flange Screw (CounterBore) | Steel | Zinc/Clear | 3/4-10 x 2 1/2 | 3/4-10x2 1/2 ferry cap screw 170ksi mech zinc mtrs showing hrc 37-45 and chemistry reqd b18.2.1 | 80 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 2 3/4 | 3/8-24 x 2 3/4 12 point cap screw alloy b18.2.1 | 37 |
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| ASMC | IL | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 2 3/4 | 3/8-24x2 3/4 fine 12-point flange screw alloy pln | 130 |
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| All Size | TX | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-16 x 2 3/4 | 3/4-16 x 2 3/4 12 point flange bolt plain b18.2.1 | 115 |
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| All Size | TX | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-10 x 2 3/4 | 3/4-10 x 2 3/4 12 point flange bolt plain b18.2.1 | 177 |
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| General F | MI | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-10 x 2 3/4 | 3/4-10x2.75 12 pt ctbr scr b18.2.1 | 900 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 3 | 3/8-24 x 3 12 point cap screw alloy b18.2.1 | 20 |
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| Weaver | WA | 12 Point Flange Screw (CounterBore) | Grade 8 | Plain | 3/4-16 x 3 | 3/4-16x3 gr8 12pt hd flange bolt plain | 10 |
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| Valley Nu | WA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 3 | nc 12 pt fl/b pl | 47 |
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| Future Fastener | TX | 12 Point Flange Screw (CounterBore) | Steel | Black Oxide | 3/4-10 x 3 | 3/4-10 x 3 ferry head cap screw blk | 8 |
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| Delta | TX | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 3 | 12 pt countr-bor plain 3/8-16 x 3 | 100 |
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| ISSCO | MO | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-10 x 3 | 12 point counterbore screw | 1125 |
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| CNB | IL | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 3 1/2 | 12-pt c/s per dwg # 40221580 | 20234 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 3 1/2 | 3/8-24 x 3 1/2 12 point cap screw alloy b18.2.1 | 40 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-10 x 3 1/2 | 3/4-10 x 3 1/2 12 point cap screw alloy b18.2.1 | 20 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-16 x 3 1/2 | 3/4-16 x 3 1/2 12 point cap screw alloy b18.2.1 | 12 |
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| Weaver | WA | 12 Point Flange Screw (CounterBore) | Grade 8 | Plain | 3/4-16 x 3 1/2 | 3/4-16x3 1/2 gr8 12pt hd flange bolt plain | 10 |
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| ASMC | IL | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 3 1/2 | coarse 12-point fl/b b18.2.1 | 10 |
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| Century | FL | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-16 x 3 1/2 | 3/4-16 x 3 1/2 12 point flange screw (3/4-16 x 3 1/2 12 POINT FLANGE SCREW PER IE2360 PLAIN) (3/4-16 x 3 1/2 12 POINT FLANGE SCREW PER IE2360 PLAIN) | 2649 |
|
| Valley Nu | WA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-10 x 3 1/2 | nc 12 pt fl/b pl | 30 |
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| Valley Nu | WA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-16 x 3 1/2 | nf 12 pt fl/b pl | 15 |
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| Future Fastener | TX | 12 Point Flange Screw (CounterBore) | Steel | Black Oxide | 3/4-16 x 3 1/2 | 3/4-16 x 3 1/2 ferry head cap screw blk | 18 |
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| All Size | TX | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-16 x 3 1/2 | 3/4-16 x 3 1/2 12 point flange bolt plain b18.2.1 | 34 |
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| ISSCO | MO | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-10 x 3 1/2 | 12 point counterbore screw | 1595 |
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| ASMC | IL | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 3 1/2 | fine 12-point fl/b | 28 |
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| BoltCraft | NE | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 3 3/4 | 3/8-16 x 3-3/4 high strength 12-point flange head cap screw alloy partial thread 300/ctn | 2,400 |
|
| Weaver | WA | 12 Point Flange Screw (CounterBore) | Grade 8 | Plain | 3/4-16 x 4 | 3/4-16x4 gr8 12pt hd flange bolt plain | 10 |
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| Valley Nu | WA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-10 x 4 | nc 12 pt fl/b pl | 11 |
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| CIF | IL | 12 Point Flange Screw (CounterBore) | Grade 8 | Plain | 3/4-16 x 4 | 3/4-16x4 12 point flange bolt grade 8 plain (60) (60) (60) () | 60 |
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| MidStates | MI | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-10 x 4 | in 12pt fl/b sc-cntrbore | 18 |
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| Jackson | MS | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-10 x 4 | nc ferry c/s | 8 |
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| All Size | TX | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 4 | 3/8-16 x 4 12 point flange bolt plain b18.2.1 | 82 |
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| GLF | OH | 12 Point Flange Screw (CounterBore) | Superalloy (Inconel, Hastelloy, Alloy 20) | Plain | 3/4-16 x 4 1/2 | 3/4-16x4-1/2 12-pt flange bolt 17-4 ph s/s b18.2.1 () () () | 50 |
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| SRF | AL | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-10 x 4 1/2 | 12 pt counterbore screw | - |
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| Future Fastener | TX | 12 Point Flange Screw (CounterBore) | Steel | Black Oxide | 3/4-16 x 4 1/2 | 3/4-16 x 4 1/2 ferry head cap screw blk | 20 |
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| Jackson | MS | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 4 1/2 | nc ferry c/s | 43 |
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| Jackson | MS | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-16 x 4 1/2 | nf ferry c/s | 61 |
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| All Size | TX | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 4 1/2 | 3/8-16 x 4-1/2 12 point flange bolt plain b18.2.1 | 331 |
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| B & K FAST | PA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 4 3/4 | 3/8-16 x 4 3/4 12 pt flange bolts b18.2.1 | 104 |
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| ASMC | IL | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 5 | 3/8-16x5 coarse 12-point flange screw alloy pln b18.2.1 | 15 |
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| Valley Nu | WA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-10 x 5 | nc 12 pt fl/b pl | 19 |
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| CIF | IL | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4 x 5 | 3/4x5 12 point flange bolt blank 7/8 oversized body 4140 36-40 rc plain (20) (20) (20) () | 20 |
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| ISSCO | MO | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 5 3/8 | 12 point counterbore screw | 73 |
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| Delta | TX | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-10 x 5 1/2 | 12 pt countr-bor plain 3/4-10 x 5 1/2 | 66 |
|
| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-10 x 6 | 3/4-10 x 6 inch 12 point cap screw alloy b18.2.1 | 23 |
|
| Jackson | MS | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-10 x 6 | nc ferry c/s | 17 |
|
| WDMB | IA | 12 Point Flange Screw (CounterBore) | Grade 8 | Plain | 3/8-16 x 6 1/2 | scr 12pt grade 8 (pl) 3/8-16x6 1/2 (W030) (W030) | 888 |
|
| Jackson | MS | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-10 x 6 1/2 | nc ferry c/s | 72 |
|
| Valley Nu | WA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-10 x 7 | nc 12 pt fl/b pl | 5 |
|
| CIF | IL | 12 Point Flange Screw (CounterBore) | Steel | Phosphate | 3/4-16 x 7.638 | 3/4-16x7.638 12 point flange bolt alloy steel heat treat to 33/39 hrc per 1e0060 phos coated for 72 hours to red rust (969) (969) (753) () | 3729 |
| < /tr>
| Valley Nu | WA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-10 x 8 | nc 12 pt fl/b pl | 4 |
|
| WSB | KY | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-10 x 8 | q/screw 12pt flange st (xyl) 3/4-10x8 b18.2.1 | 13 |
|
| CIF | IL | 12 Point Flange Screw (CounterBore) | Steel | Phosphate | 3/4-16 x 8 1/2 | 3/4-16x8 1/2 12 point flange bolt alloy steel heat treated to 33/39 hrc phos coated for 72 hours to red rust (3980) (3980) (3930) () | 3930 |
|
| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-16 x 10 | 3/4-16 x 10 12 point cap screw alloy b18.2.1 | 10 |
|
| Jackson | MS | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4 x 4-1/2 ferry head cap screw 170m psi 12 point plain partially threaded | 8 |
| |
| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 3 1/4 | 3/8-24 x 3 1/4 12 point cap screw alloy | 31 |
|
| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-16 x 7 | 3/4-16 x 7 12 point cap screw alloy | 4 |
|
| Century | FL | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8 | ms21250h06006 | 70 |
|
| ISSCO | MO | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/4-16 5 | 12 point counterbore screw | 724 |
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