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4 1/2 inch length Flat Head Cap Screws
Flat Head Socket Cap Screws are designed to be seated in countersunk holes, and align flush with the surface of the assembly when installed. Flat head socket cap screws have a flat top surface, an indented hex and a conical bearing surface with a head angle of 82°. Flat head socket cap screws are commonly used in machine parts, die fixturing, and clamping.
89 results, (click on any line for more information)
| Buy Flat Head Cap Screws from one of our FCH Network Members | ||||||||
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| Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
| Jackson | MS | Flat Head Socket Cap Screw | Steel | Plain | 3/4-10 x 4 1/2 | nc flat socket c/s | 40 |
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| Weaver | WA | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/8-11 x 4 1/2 | 5/8-11x4 1/2 flat hd socket c/s 18-8 ss | 6 |
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| Weaver | WA | Flat Head Socket Cap Screw | Steel | Plain | 1-8 x 4 1/2 | 1-8x4 1/2 flat hd socket c/s plain | 4 |
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| Jackson | MS | Flat Head Socket Cap Screw | Steel | Plain | 3/8-16 x 4 1/2 | 3/8-16 x 4 1/2 nc flat head socket cap screw alloy plain | 61 |
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| TownCountry | AR | Flat Head Socket Cap Screw | Steel | Plain | 3/8-16 x 4 1/2 | 3/8-16 x 4 1/2 flat socket head cap screw | 24 |
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| Future Fastener | TX | Flat Head Socket Cap Screw | Steel | Black Oxide | 3/8-16 x 4 1/2 | 3/8-16 x 4 1/2 flat fead socket blk | 15 |
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| Future Fastener | TX | Flat Head Socket Cap Screw | Steel | Black Oxide | 3/4-10 x 4 1/2 | 3/4-10 x 4 1/2 flat head socket blk | 20 |
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| Jackson | MS | Flat Head Socket Cap Screw | Steel | Plain | 5/8-11 x 4 1/2 | nc flat socket c/s | 44 |
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| Jackson | MS | Flat Head Socket Cap Screw | Steel | Plain | 1/2-13 x 4 1/2 | nc semi standard flat socket c/s | 54 |
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| NAPPCO | TX | Flat Head Socket Cap Screw | Steel | Plain | 1-8 x 4 1/2 | flat socket c/s steel 1-8x4-1/2 (2-CAP SCREWS - SOCKET) (2-CAP SCREWS - SOCKET) (2-CAP SCREWS - SOCKET) (2-CAP SCREWS - SOCKET) (2-CAP SCREWS - SOCKET) (2-CAP SCREWS - SOCKET) (2-CAP SCREWS - SOCKET) (2-CAP SCREWS - SOCKET) (2-CAP SCREWS - SOCKET) (2-CAP SCREWS - SOCKET) (2-CAP SCREWS - SOCKET) (2-CAP SCREWS - SOCKET) (2-CAP SCREWS - SOCKET) (2-CAP SCREWS - SOCKET) (2-CAP SCREWS - SOCKET) (2-CAP SCREWS - SOCKET) (2-CAP SCREWS - SOCKET) (2-CAP SCREWS - SOCKET) (2-CAP SCREWS - SOCKET) | 45 |
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| BHAM | AL | Flat Head Socket Cap Screw | Steel | Plain | 1-8 x 4 1/2 | 1-8x4 1/2 flat soc cap scr b18.2.1 b18.3 | 59 |
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| BHAM | AL | Flat Head Socket Cap Screw | Steel | Plain | 3/4-10 x 4 1/2 | 3/4-10x4 1/2 flat soc cap scr b18.2.1 b18.3 | 248 |
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| CIF | IL | Flat Head Socket Cap Screw | Steel | Zinc/Clear | 3/8-16 x 4 1/2 | 3/8-16x4 1/2 flat head socket cap screw alloy zinc plated (31) (31) (31) () | 31 |
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| ASMC | IL | Flat Head Socket Cap Screw | Steel | Plain | 7/8-9 x 4 1/2 | 7/8-9x4 1/2 (pt) coarse socket flat hd cap screw alloy pln b18.2.1 b18.3 | 4 |
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| ASMC | IL | Flat Head Socket Cap Screw | Steel | Plain | 3/4-16 x 4 1/2 | (ft) fine socket flat hd c/s | 8 |
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| ASMC | IL | Flat Head Socket Cap Screw | Steel | Plain | 3/8-16 x 4 1/2 | (pt) coarse socket flat hd c/s | 100 |
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| ASMC | IL | Flat Head Socket Cap Screw | Steel | Plain | 5/8-11 x 4 1/2 | (pt) coarse socket flat hd c/s | 45 |
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| ASMC | IL | Flat Head Socket Cap Screw | Steel | Plain | 1/2-13 x 4 1/2 | (pt) coarse socket flat hd c/s b18.3 | 72 |
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| ASMC | IL | Flat Head Socket Cap Screw | Steel | Plain | 1-8 x 4 1/2 | (pt) coarse socket flat hd c/s | 15 |
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| GLF | OH | Flat Head Socket Cap Screw | Steel | Plain | 1 1/4-7 x 4 1/2 | 1-1/4-7x4-1/2 flat stl pln b18.2.1 b18.3 () () | 12 |
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| Ababa | CA | Flat Head Socket Cap Screw | Steel | Plain | 3/4-10 x 4 1/2 | 3/4-10 x 4 1/2 flat soc cap screw alloy b18.2.1 b18.3 | 11 |
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| ACCURATE | IL | Flat Head Socket Cap Screw | Steel | Plain | 1-8 x 4 1/2 | 1-8x4 1/2 coarse flat socket cap sc plain (alloy) | 20 |
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| ACCURATE | IL | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 4 1/2 | flat socket cap ft 18-8 s/s | 910 |
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| ACCURATE | IL | Flat Head Socket Cap Screw | Steel | Plain | 3/4-10 x 4 1/2 | coarse flat socket c/s | 29 |
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| Liberty | IL | Flat Head Socket Cap Screw | Steel | Zinc/Clear | 5/8-11 x 4 1/2 | flat socket c/s plate plate | 2 |
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| American | NY | Flat Head Socket Cap Screw | Steel | Plain | 3/8-16 x 4 1/2 | flat socket cap | 360 |
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| MFS | KS | Flat Head Socket Cap Screw | Steel | Plain | 3/8-16 x 4 1/2 | alloy | 38 |
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| METRO IND | OH | Flat Head Socket Cap Screw | Steel | Plain | 7/8-9 x 4 1/2 | flat skt c/s | 20 |
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| METRO IND | OH | Flat Head Socket Cap Screw | Steel | Plain | 3/8-16 x 4 1/2 | flat skt c/s | 2 |
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| Fastener | OH | Flat Head Socket Cap Screw | Steel | Plain | 3/8-16 x 4 1/2 | flat head socket cap screw 3/8-16x4-1/2 alloy | 34 |
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| Fastener | OH | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/8-11 x 4 1/2 | flat socket head cap screw 5/8-11x4-1/2 18-8 | 2 |
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| Infasco D | IL | Flat Head Socket Cap Screw | Steel | Plain | 1-8 x 4 1/2 | 1-8 x 4 1/2 s hex flat skt cntk b18.3 (alloy) unc n p | 24 |
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| Infasco D | TX | Flat Head Socket Cap Screw | Steel | Plain | 3/4-10 x 4 1/2 | 3/4-10x4 1/2 flat socket alloy unc plain 3/4-10x4 1/2 | 560 |
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| Infasco D | IL | Flat Head Socket Cap Screw | Steel | Plain | 3/4-10 x 4 1/2 | 3/4-10x4 1/2 flat socket alloy unc plain 3/4-10x4 1/2 | 720 |
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| Infasco D | GA | Flat Head Socket Cap Screw | Steel | Plain | 3/4-10 x 4 1/2 | 3/4-10x4 1/2 flat socket alloy unc plain 3/4-10x4 1/2 | 560 |
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| Empire | WA | Flat Head Socket Cap Screw | Steel | Zinc/Clear | 1-8 x 4 1/2 | 1-8 x 4-1/2 flat soc c/s | 8 |
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| SII | IN | Flat Head Socket Cap Screw | Steel | Plain | 1/2-13 x 4 1/2 | 1/2 -13 x 4-1/2 fhscs plain | 39 |
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| MidStates | MI | Flat Head Socket Cap Screw | Steel | Plain | 1 1/2-6 x 4 1/2 | flat soc c/s | 1 |
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| NutsBolts | NE | Flat Head Socket Cap Screw | Steel | Plain | 1-8 x 4 1/2 | 1-8 x 4 1/2 fhcs |
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| Setko Fas | IL | Flat Head Socket Cap Screw | Steel | Plain | 3/8-16 x 4 1/2 | 3/8-16x4 1/2 alloy flat head hex socket cap screw | 1000 |
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| HBBOLT | CA | Flat Head Socket Cap Screw | Steel | Plain | 3/8-16 x 4 1/2 | fh soc cap | 6 |
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| WDMB | IA | Flat Head Socket Cap Screw | Steel | Plain | 7/8-9 x 4 1/2 | screw flat soc alloy 7/8-9x4 1/2 | 7 |
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| Standard | MA | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 4 1/2 | 5/16-18x4-1/2 flat head socket cap screw 18-8 s/s steel | 2450 |
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| Standard | MA | Flat Head Socket Cap Screw | 316, 317, A4 Stainless | Plain | 3/8-16 x 4 1/2 | 3/8-16x4-1/2 flat head socket cap screw 316 stainless steel | 49 |
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| JET Indus | WI | Flat Head Socket Cap Screw | Steel | Plain | 3/8-16 x 4 1/2 | flat 3/8-16x4 1/2 | 33 |
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| IPC | VA | Flat Head Socket Cap Screw | Steel | Plain | 3/4-10 x 4 1/2 | 3/4-10x4 1/2 flat head socket cap screw | 181 |
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| FasSpcMfg | FL | Flat Head Socket Cap Screw | Steel | Plain | 7/16-20 x 4 1/2 | 7/16-20x4-1/2 flat socket cap | 4 |
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| FasSpcMfg | FL | Flat Head Socket Cap Screw | Steel | Plain | 5/8-18 x 4 1/2 | flat hd soc cap | 2 |
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| FTS | OH | Flat Head Socket Cap Screw | Steel | Plain | 3/4-10 x 4 1/2 | flat soc cs | 33 |
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| Hodell | OH | Flat Head Socket Cap Screw | Steel | Plain | 5/8-11 x 4 1/2 | 5/8-11x4 1/2 flat hd soc c/s unc plain | 257 |
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| Hodell | OH | Flat Head Socket Cap Screw | Steel | Plain | 5/8-11 x 4 1/2 | 5/8-11x4 1/2 flat hd soc c/s unc plain | 257 |
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| B & K FAST | PA | Flat Head Socket Cap Screw | Steel | Plain | 3/8-16 x 4 1/2 | 3/8-16 x 4 1/2 flat hd socket cap screws b18.2.1 b18.3 | 46 |
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| B & K FAST | PA | Flat Head Socket Cap Screw | Steel | Plain | 5/8-11 x 4 1/2 | 5/8-11 x 4 1/2 flat hd socket cap screws b18.2.1 b18.3 | 3 |
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| B & K FAST | PA | Flat Head Socket Cap Screw | Steel | Plain | 7/8-9 x 4 1/2 | 7/8-9 x 4 1/2 flat hd socket cap screws b18.2.1 b18.3 | 12 |
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| B & K FAST | PA | Flat Head Socket Cap Screw | Steel | Plain | 1-8 x 4 1/2 | 1-8 x 4 1/2 flat hd socket cap screws b18.2.1 b18.3 | 7 |
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| Lubker Di | PA | Flat Head Socket Cap Screw | Steel | Plain | 1/2-13 x 4 1/2 | 1/2-13x4 1/2 flat shcs alloy plain | 72 |
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| Fastener | OH | Flat Head Socket Cap Screw | Steel | Plain | 1/2-13 x 4 1/2 | flat socket head cap screw 1/2-13x4-1/2 alloy steel | 5 |
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| Marine Fasteners | FL | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 4 1/2 | 1/2-13x4-1/2 flat soc cs ss b18.2.1 b18.3 | 2585 |
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| Marine Fasteners | FL | Flat Head Socket Cap Screw | 316, 317, A4 Stainless | Plain | 5/8-11 x 4 1/2 | 5/8-11x4-1/2 flat soc cs 316ss 316ss b18.2.1 b18.3 | 400 |
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| Marine Fasteners | FL | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/8-1 x 4 1/2 | 5/8-1 x 4-1/2 flat soc c.s. ss b18.2.1 b18.3 | 194 |
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| QFC | TX | Flat Head Socket Cap Screw | Steel | Plain | 5/8-11 x 4 1/2 | 5/8-11x4 1/2 flat soc c/s alloy plain b18.2.1 b18.3 | 4 |
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| ZAL INDUS | CA | Flat Head Socket Cap Screw | Steel | Plain | 5/8-11 x 4 1/2 | 5/8-11 x 4 1/2 flat soc cap screw alloy | 42 |
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| Lippin | CA | Flat Head Socket Cap Screw | 300 S tainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8-16 x 4 1/2 | socket cap screw flat head stainless 18-8 | 128 |
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| FastWare | Sask | Flat Head Socket Cap Screw | Steel | Plain | 1/2-13 x 4 1/2 | nc flat socket c/s | 46 |
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| FastWare | Sask | Flat Head Socket Cap Screw | Steel | Plain | 3/4-10 x 4 1/2 | nc flat socket c/s | 12 |
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| SRF | AL | Flat Head Socket Cap Screw | Steel | Plain | 5/16-18 x 4 1/2 | flat soc c/s | - |
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| SRF | AL | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8-16 x 4 1/2 | flat soc c/s s/s | 1 |
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| SRF | AL | Flat Head Socket Cap Screw | Steel | Plain | 3/4-10 x 4 1/2 | flat soc c/s | 30 |
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| SRF | AL | Flat Head Socket Cap Screw | Steel | Plain | 3/4-16 x 4 1/2 | flat soc c/s | 28 |
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| SRF | AL | Flat Head Socket Cap Screw | Steel | Plain | 3/8-16 x 4 1/2 | flat soc c/s | - |
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| ASFCORP | MI | Flat Head Socket Cap Screw | Steel | Black Oxide | 1-8 x 4 1/2 | 1-8 x 4 1/2 flt hd soc cap blk ox | 20 |
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| OBRIEN | OH | Flat Head Socket Cap Screw | Steel | Plain | 3/8-16 x 4 1/2 | flat socket cap | 175 |
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| THRDFAST | FL | Flat Head Socket Cap Screw | Steel | Plain | 1/2-13 x 4 1/2 | flat socket c/s b18.2.1 b18.3 | 1 |
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| THRDFAST | TN | Flat Head Socket Cap Screw | Steel | Plain | 5/16-18 x 4 1/2 | flat socket c/s b18.2.1 b18.3 | 6 |
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| EASTERN SCREW | RI | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #8-32 x 4 1/2 | 8-32 x 4-1/2 hex soc flat 18-8 pp# 1019388 | 12,050 |
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| THRDFAST | AL | Flat Head Socket Cap Screw | Steel | Plain | 1-8 x 4 1/2 | flat socket c/s b18.2.1 b18.3 | 10 |
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| WSB | KY | Flat Head Socket Cap Screw | Steel | Plain | 3/8-16 x 4 1/2 | screw flat soc alloy 3/8-16x4 1/2 b18.2.1 b18.3 | 699 |
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| All Size | TX | Flat Head Socket Cap Screw | Steel | Plain | 5/8-11 x 4 1/2 | 5/8-11 x 4 1/2 flat head socket cap b18.2.1 b18.3 | 109 |
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| All Size | TX | Flat Head Socket Cap Screw | Steel | Plain | 3/4-10 x 4 1/2 | 3/4-10 x 4 1/2 flat head socket cap b18.2.1 b18.3 | 24 |
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| All Size | TX | Flat Head Socket Cap Screw | Steel | Plain | 3/8-16 x 4 1/2 | 3/8-16 x 4 1/2 flat head socket cap b18.2.1 b18.3 | 160 |
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| BRIGHBEST | IL | Flat Head Socket Cap Screw | Steel | Zinc/Clear | 3/8-16 x 4 1/2 | 3/8-16 x 4 1/2 flat socket cap hardened clear bake | 500 |
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| Wurth | IN | Flat Head Socket Cap Screw | Steel | Plain | 1/4-20 x 4 1/2 | 1/4-20 x 4 1/2 socket flat hd alloy zf | 2,836 |
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| Wurth | IN | Flat Head Socket Cap Screw | Steel | Plain | 3/4-10 x 4 1/2 | 3/4-10 x 4-1/2 flat hd socket cap alloy | 691 |
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| Valley Nu | WA | Flat Head Socket Cap Screw | Steel | Plain | 7/8-9 x 4 1/2 | nc flat hd socket c/s pl | 6 |
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| Valley Nu | WA | Flat Head Socket Cap Screw | Steel | Plain | 3/8-16 x 4 1/2 | nc flat hd socket c/s | 33 |
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| Valley Nu | WA | Flat Head Socket Cap Screw | Steel | Plain | 5/8-11 x 4 1/2 | nc flat hd socket c/s pl | 39 |
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| Valley Nu | WA | Flat Head Socket Cap Screw | Steel | Plain | 3/4-10 x 4 1/2 | nc flat hd socket c/s pl | 15 |
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| SeattleNB | WA | Flat Head Socket Cap Screw | 316, 317, A4 Stainless | Plain | 5/16-18 x 4 1/2 | 5/16-18x4-1/2 flat soc cs 316 ss | 1,800 |
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| ACCURATE | IL | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 4 1/2 | flat socket fulthd socket c/s 18-8ss | 2,000 |
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