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3 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.
35,529 Flat Head Socket Cap Screw, showing 200, (click on any line for more information)
| Buy Flat Head Cap Screws from one of our FCH Network Members | ||||||||
|---|---|---|---|---|---|---|---|---|
| Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
| METRO IND | OH | Flat Head Socket Cap Screw | Steel | Plain | 3/8-16 x 3 1/2 | 3/8-16 x 3 1/2 flat skt c/s alloy | 150 |
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| Weaver | WA | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8-16 x 3 1/2 | 3/8-16x3 1/2 flat hd socket c/s 18-8 ss | 93 |
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| Weaver | WA | Flat Head Socket Cap Screw | Steel | Plain | 1/2-13 x 3 1/2 | 1/2-13x3 1/2 flat hd socket c/s plain | 12 |
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| Weaver | WA | Flat Head Socket Cap Screw | Steel | Plain | 5/8-11 x 3 1/2 | 5/8-11x3 1/2 flat hd socket c/s plain | 40 |
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| Jackson | MS | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4 x 3 1/2 | 1/4 x 3-1/2 nc flat heat socket c/s stainless | 56 |
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| METRO IND | OH | Flat Head Socket Cap Screw | Steel | Plain | 1/2-13 x 3 1/2 | flat skt c/s | 2 |
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| METRO IND | OH | Flat Head Socket Cap Screw | Steel | Plain | 1-8 x 3 1/2 | flat skt c/s | 60 |
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| Jackson | MS | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8-16 x 3 1/2 | nc flat socket c/s 18-8 s/s | 16 |
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| Jackson | MS | Flat Head Socket Cap Screw | Steel | Plain | 7/8-9 x 3 1/2 | nc flat socket c/s | 40 |
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| Jackson | MS | Flat Head Socket Cap Screw | Steel | Plain | 1/2-13 x 3 1/2 | nc semi standard flat socket c/s | 218 |
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| Jackson | MS | Flat Head Socket Cap Screw | Steel | Plain | 5/8-11 x 3 1/2 | nc flat socket c/s | 97 |
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| Jackson | MS | Flat Head Socket Cap Screw | Steel | Plain | 1/4-20 x 3 1/2 | nc flat socket c/s | 167 |
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| Jackson | MS | Flat Head Socket Cap Screw | Steel | Plain | 5/16-18 x 3 1/2 | nc flat socket c/s | 251 |
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| SunPack | FL | Flat Head Socket Cap Screw | Steel | Fluoropolymer-Based (Xylan, Fluorokote, Teflon) | 5/8-11 x 3 1/2 | 5/8-11x3-1/2 alloy steel flat hd socket cap screw ptfe blue | 25 |
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| SWACO | OH | Flat Head Socket Cap Screw | Steel | Plain | 3/8-16 x 3 1/2 | 3/8-16x3-1/2 flat alloy | 77 |
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| SWACO | OH | Flat Head Socket Cap Screw | Steel | Black Oxide | 1/4-20 x 3 1/2 | 1/4-20x3 1/2 flat alloy blk | 70 |
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| SWACO | OH | Flat Head Socket Cap Screw | Steel | Plain | 1-8 x 3 1/2 | 1-8x3-1/2 flat alloy | 5 |
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| R&S Indus | OR | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/8-11 x 3 1/2 | 5/8-11x3 1/2 non-standard flat socket caps coarse stain a2 (18-8) | 27 |
|
| R&S Indus | OR | Flat Head Socket Cap Screw | Steel | Plain | 3/4-16 x 3 1/2 | 3/4-16 x 3 1/2 flat head socket cap screw plain | 15 |
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| R&S Indus | OR | Flat Head Socket Cap Screw | Steel | Plain | 7/8-9 x 3 1/2 | 7/8-9x3 1/2 (ft) flat socket caps coarse alloy thermal black oxide | 10 |
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| Hayes | CA | Flat Head Socket Cap Screw | Steel | Plain | 1/2-13 x 3 1/2 | 1/2-13 x 3 1/2 flat socket c/s alloy | 625 |
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| Hayes | CA | Flat Head Socket Cap Screw | Steel | Plain | #10 x 3 1/2 | #10 x 3 1/2 6-lobe flat type-17 zii | 533 |
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| Hayes | CA | Flat Head Socket Cap Screw | Steel | Plain | 3/4-10 x 3 1/2 | 3/4-10 x 3 1/2 flat socket c/s alloy | 2 |
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| Set Screw | IL | Flat Head Socket Cap Screw | Steel | Plain | 1 1/2-6 x 3 1/2 | flat socket c/s | inquire |
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| ACCURATE | IL | Flat Head Socket Cap Screw | Steel | Plain | 1/4-20 x 3 1/2 | coarse flat socket c/s (alloy) | 200 |
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| ACCURATE | IL | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3 1/2 | coarse flat socket cap 18-8 304 | 19 |
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| ACCURATE | IL | Flat Head Socket Cap Screw | Steel | Plain | 3/8-16 x 3 1/2 | coarse flat socket c/s (alloy) | 8 |
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| ACCURATE | IL | Flat Head Socket Cap Screw | Steel | Plain | 5/8-11 x 3 1/2 | coarse flat socket c/s (alloy) | 16 |
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| ACCURATE | IL | Flat Head Socket Cap Screw | Steel | Plain | 1/2-13 x 3 1/2 | coarse flat socket c/s (alloy) | 69 |
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| ACCURATE | IL | Flat Head Socket Cap Screw | Steel | Plain | 3/4-10 x 3 1/2 | coarse flat socket c/sr | 60 |
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| ACCURATE | IL | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 3 1/2 | coarse flat socket c/s 18-8 s/s | 44 |
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| ACCURATE | IL | Flat Head Socket Cap Screw | Steel | Plain | 3/8-24 x 3 1/2 | fine flat socket c/s | 15 |
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| BHAM | AL | Flat Head Socket Cap Screw | Steel | Plain | 7/8-9 x 3 1/2 | 7/8-9x3 1/2 flat soc cap scr b18.2.1 b18.3 | 143 |
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| YANKEE | NH | Flat Head Socket Cap Screw | Steel | Black Oxide | 1-8 x 3 1/2 | 1-8 x 3-1/2 flat head socket screw alloy steel black oxide | 18 |
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| YANKEE | NH | Flat Head Socket Cap Screw | Steel | Plain | 1/4-20 x 3 1/2 | 1/4-20 x 3 1/2 flat head socket screw alloy | 87 |
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| YANKEE | NH | Flat Head Socket Cap Screw | Steel | Black Oxide | 5/16-18 x 3 1/2 | 5/16-18 x 3-1/2 flat socket cap screw alloy steel black oxide | 44 |
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| YANKEE | NH | Flat Head Socket Cap Screw | Steel | Black Oxide | 1/2-13 x 3 1/2 | 1/2-13 x 3 1/2 flt hd sckt cap alloy blk oxide | 11 |
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| YANKEE | NH | Flat Head Socket Cap Screw | Steel | Zinc/Clear | 5/8-11 x 3 1/2 | 5/8-11 x 3 1/2 flt hd sckt cap zinc pltd | 1 |
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| YANKEE | NH | Flat Head Socket Cap Screw | Steel | Black Oxide | 3/8-16 x 3 1/2 | flat socket cap | 26 |
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| GLF | OH | Flat Head Socket Cap Screw | Steel | Plain | 1-8 x 3 1/2 | 1-8x3-1/2 flat stl pln b18.2.1 b18.3 () () () | 24,000 |
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| NAPPCO | TX | Flat Head Socket Cap Screw | Steel | Plain | 5/8-11 x 3 1/2 | flat soc c/s steel 5/8-11x3-1/2 | 55 |
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| Endries | WI | Flat Head Socket Cap Screw | Steel | Zinc/Clear | 1/2-13 x 3 1/2 | 1/2-13x3-1/2 flat socket head cap screw zinc | 2661 |
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| MESAFAST | CA | Flat Head Socket Cap Screw | Steel | Zinc/Clear | 1/2-13 x 3 1/2 | flat socket c/s & bake | 25.0 |
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| Endries | WI | Flat Head Socket Cap Screw | Steel | Plain | 5/16-18 x 3 1/2 | 5/16-18x3-1/2 flat socket head cap screw plain | 700 |
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| A-Plus Co | OR | Flat Head Socket Cap Screw | Steel | Plain | 5/16-18 x 3 1/2 | 5/16-18 x 3 1/2 nc flat head socket cap screw | 51 |
|
| A-Plus Co | OR | Flat Head Socket Cap Screw | Steel | Plain | 3/8-16 x 3 1/2 | 3/8-16 x 3 1/2 nc flat head socket cap screw | 87 |
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| FasSpcMfg | FL | Flat Head Socket Cap Screw | Superalloy (Inconel, Hastelloy, Alloy 20) | Plain | 1/4-20 x 3 1/2 | 1/4-20 x 3-1/2 flat head socket cap hastelloy c 276 full thread | 3 |
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| FasSpcMfg | FL | Flat Head Socket Cap Screw | ASTM A574 | Plain | 1/4-20 x 3 1/2 | 1/4-20 x 3 1/2 flat hd soc cap alloy | 730 |
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| FasSpcMfg | FL | Flat Head Socket Cap Screw | ASTM A574 | Plain | 5/16-24 x 3 1/2 | 5/16-24 x 3 1/2 flat hd soc cap ft alloy | 50 |
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| FasSpcMfg | FL | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8-16 x 3 1/2 | 3/8-16 x 3-1/2 flat head socket cap 18-8 stainless | 301 |
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| FasSpcMfg | FL | Flat Head Socket Cap Screw | ASTM A574 | Plain | 3/8-16 x 3 1/2 | 3/8-16 x 3 1/2 flat hd soc cap alloy | 645 |
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| FasSpcMfg | FL | Flat Head Socket Cap Screw | 316, 317, A4 Stainless | Plain | 1/2-13 x 3 1/2 | 1/2-13 x 3-1/2 flat head socket cap 316 stainless | 5 |
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| FasSpcMfg | FL | Flat Head Socket Cap Screw | Ni-Cu Alloy (Monel, K-Monel, etc.) | Plain | 1/2-13 x 3 1/2 | 1/2-13 x 3-1/2 flat head socket cap ni-cu 405 | 2 |
|
| FasSpcMfg | FL | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 3 1/2 | 1/2-13 x 3-1/2 flat head socket cap full thread 18-8 stainless | 440 |
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| FasSpcMfg | FL | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/4-10 x 3 1/2 | 3/4-10 x 3-1/2 flat head socket cap 304b stainless strain-hardened | 2 |
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| FasSpcMfg | FL | Flat Head Socket Cap Screw | ASTM A574 | Plain | 3/4-10 x 3 1/2 | 3/4-10 x 3-1/2 flat head socket cap 4140 alloy rc 26-32 b7 | 1 |
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| FasSpcMfg | FL | Flat Head Socket Cap Screw | Brass | Plain | 3/4-10 x 3 1/2 | 3/4-10 x 3-1/2 flat head socket cap brass | 1 |
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| OneMonroe | NC | Flat Head Socket Cap Screw | Steel | Black Oxide | 3/4-16 x 3 1/2 | 3/4-16 x 3-1/2 black oxide finish flat socket cap screw | 25 |
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| OneMonroe | NC | Flat Head Socket Cap Screw | Steel | Plain | 3/4-16 x 3 1/2 | 3/4-16 x 3 1/2 flat soc cap screw | 25 |
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| OneMonroe | NC | Flat Head Socket Cap Screw | Steel | Plain | 5/16-18 x 3 1/2 | 5/16-18 x 3 1/2 flat soc cap screw bulk plat | 284 |
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| OneMonroe | NC | Flat Head Socket Cap Screw | Steel | Plain | 3/8-24 x 3 1/2 | 3/8-24 x 3 1/2 flat soc cap screw | 81 |
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| OneMonroe | MN | Flat Head Socket Cap Screw | Steel | Plain | 5/16-18 x 3 1/2 | 5/16-18 x 3-1/2 flat skt hd c/s-pln | 233 |
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| BoltCraft | NE | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 3 1/2 | 1/2-13 x 3-1/2 flat head socket cap screw gr 18.8 stainless steel | 50 |
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| Jackson | MS | Flat Head Socket Cap Screw | Steel | Plai n | 1-8 x 3-1/2 flat head socket cap screw alloy plain | 29 |
| |
| Jackson | MS | Flat Head Socket Cap Screw | Steel | Plain | 3/4-10 x 3 1/2 | nc flat socket c/s | 63 |
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| OneMonroe | MN | Flat Head Socket Cap Screw | Steel | Plain | 5/16-18 x 3 1/2 | 5/16-18 x 3-1/2 flat skt hd c/s-pln | 233 |
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| NutsBolts | NE | Flat Head Socket Cap Screw | Steel | Plain | 1/2-13 x 3 1/2 | 1/2-13 x 3 1/2 fhcs import | 12 |
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| MTP | CA | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8-16 x 3 1/2 | 3/8-16 x 3-1/2 s.s 18-8 flat hd socket screw | stock |
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| Liberty | IL | Flat Head Socket Cap Screw | Steel | Plain | 3/4-10 x 3 1/2 | flat socket c/s c/s | 240 |
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| Liberty | IL | Flat Head Socket Cap Screw | Steel | Plain | 7/8-9 x 3 1/2 | flat socket c/s screw | 45 |
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| Liberty | IL | Flat Head Socket Cap Screw | Steel | Zinc/Clear | 3/4-10 x 3 1/2 | flat socket c/s | 84 |
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| Liberty | IL | Flat Head Socket Cap Screw | Steel | Plain | 1/4-20 x 3 1/2 | flat socket c/s | 100 |
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| Future Fastener | TX | Flat Head Socket Cap Screw | Steel | Galvanized | 3/4-10 x 3 1/2 | 3/4-10x3-1/2 flat head socket unc thread hot dip galvanized domestic | 3 |
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| Future Fastener | TX | Flat Head Socket Cap Screw | Steel | Black Oxide | 1/2-13 x 3 1/2 | 1/2-13 x 3 1/2 flat head socket blk | 45 |
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| Future Fastener | TX | Flat Head Socket Cap Screw | Steel | Zinc/Clear | 5/8-11 x 3 1/2 | 5/8-11 x 3 1/2 flat head socket plt | 4 |
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| Future Fastener | TX | Flat Head Socket Cap Screw | Steel | Black Oxide | 3/4-10 x 3 1/2 | 3/4-10 x 3 1/2 flat hd socket blk | 29 |
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| Future Fastener | TX | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 3 1/2 | 1/2-13 x 3 1/2 flat head socket ss | 80 |
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| Future Fastener | TX | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #10-32 x 3 1/2 | 10-32 x 3 1/2 flat head socket ss | 5 |
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| BHAM | AL | Flat Head Socket Cap Screw | Steel | Plain | 3/8-16 x 3 1/2 | 3/8-16x3 1/2 flat soc cap scr b18.2.1 b18.3 | 25 |
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| Aspen | PA | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 7/8-9 x 3 1/2 | 7/8-9 x 3-1/2, flat head socket cap screws, aisi 304 stainless steel (18-8) | 5 |
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| American | NY | Flat Head Socket Cap Screw | Steel | Plain | 1/2-13 x 3 1/2 | 1/2-13 x 3-1/2 flat socket cap alloy steel | 5 |
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| BIG BOLT | IL | Flat Head Socket Cap Screw | Steel | Plain | 7/8-9 x 3 1/2 | bolt & c/s hex c/s flat socket cntsnk b18.3 | 1900 |
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| RCFast | AZ | Flat Head Socket Cap Screw | Steel | Zinc/Clear | 3/8-16 x 3 1/2 | flat soc cap stl 1 | 350 |
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| Fastener | OH | Flat Head Socket Cap Screw | Steel | Zinc/Black | 3/8-16 x 3 1/2 | flat head socket cap screw 3/8-16x3-1/2 alloy steel zinc per mil-std-171 dull black | 36 |
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| Endries | WI | Flat Head Socket Cap Screw | Steel | Plain | 3/8-16x3-1/2 flat socket head cap screw plain | 150 |
| |
| Mansco | MI | Flat Head Socket Cap Screw | Steel | Zinc/Clear | 3/8-16 x 3 1/2 | 3/8-16x3-1/2 flat hd soc cap scr triv znc | 66 |
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| Mansco | MI | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 3 1/2 | flat hd soc cap 18-8 s/s 100/box | 200 |
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| Mansco | MI | Flat Head Socket Cap Screw | Steel | Plain | 1/4-20 x 3 1/2 | 1/4-20 x 3-1/2 flat hd soc cap scr pln w/precote 80 | 750 |
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| Mansco | MI | Flat Head Socket Cap Screw | Steel | Galvanized | 5/8-11 x 3 1/2 | 5/8-11 x 3-1/2 flat hd soc cap scr mechanical galv usa | 24 |
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| Future Fastener | TX | Flat Head Socket Cap Screw | Steel | Black Oxide | 5/8-11 x 3 1/2 | 5/8-11x3 1/2 flat head soc cap screw blk | 19 |
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| NutsBolts | NE | Flat Head Socket Cap Screw | Steel | Plain | 1/2-13 x 3 1/2 | 1/2-13 x 3 1/2 fhcs import | 12 |
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| NutsBolts | NE | Flat Head Socket Cap Screw | Steel | Plain | 3/4-10 x 3 1/2 | 3/4-10 x 3 1/2 fhcs import | 10 |
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| Ababa | CA | Flat Head Socket Cap Screw | Steel | Plain | 1/4-20 x 3 1/2 | 1/4-20 x 3 1/2 flat soc cap screw alloy b18.2.1 b18.3 | 60 |
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| Ababa | CA | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8-16 x 3 1/2 | 3/8-16 x 3 1/2 flat soc cap screw s/s b18.2.1 b18.3 | 15 |
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| Ababa | CA | Flat Head Socket Cap Screw | Steel | Plain | 3/8-16 x 3 1/2 | 3/8-16 x 3 1/2 flat soc cap screw alloy b18.2.1 b18.3 | 190 |
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| Ababa | CA | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 3 1/2 | 1/2-13 x 3 1/2 flat soc cap screw s/s b18.2.1 b18.3 | 90 |
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| Ababa | CA | Flat Head Socket Cap Screw | Steel | Plain | 1/2-13 x 3 1/2 | 1/2-13 x 3 1/2 flat soc cap screw alloy b18.2.1 b18.3 | 35 |
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| Ababa | CA | Flat Head Socket Cap Screw | Steel | Plain | 3/4-10 x 3 1/2 | 3/4-10 x 3 1/2 flat soc cap screw alloy b18.2.1 b18.3 | 11 |
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| Ababa | CA | Flat Head Socket Cap Screw | Steel | Plain | 5/8-11 x 3 1/2 | 5/8-11 x 3 1/2 flat soc cap screw alloy b18.2.1 b18.3 | 30 |
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| Weaver | WA | Flat Head Socket Cap Screw | Steel | Plain | 1/4-20 x 3 1/2 | 1/4-20x3 1/2 flat hd socket c/s plain non-standard | 98 |
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| Weaver | WA | Flat Head Socket Cap Screw | Steel | Plain | 3/8-24 x 3 1/2 | 3/8-24x3 1/2 flat hd socket c/s plain | 44 |
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| Ababa | CA | Flat Head Socket Cap Screw | Steel | Plain | 5/16-18 x 3 1/2 | 5/16-18 x 3 1/2 flat soc cap screw alloy b18.2.1 b18.3 | 106 |
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| Ababa | CA | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8-16 x 3 1/2 | 3/8-16 x 3 1/2 flat soc cap screw s/s b18.2.1 b18.3 | 15 |
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| Ababa | CA | Flat Head Socket Cap Screw | Steel | Plain | 3/8-16 x 3 1/2 | 3/8-16 x 3 1/2 flat soc cap screw alloy b18.2.1 b18.3 | 30 |
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| Ababa | CA | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 3 1/2 | 1/2-13 x 3 1/2 flat soc cap screw s/s b18.2.1 b18.3 | 20 |
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| MFS | KS | Flat Head Socket Cap Screw | Steel | Plain | 1/4-20 x 3 1/2 | alloy | 65 |
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| XL Screw | GA | Flat Head Socket Cap Screw | Steel | Plain | 3/8-16 x 3 1/2 | flat hd socket c/s h t astm f835 3a thrd | 300 |
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| XL Screw | GA | Flat Head Socket Cap Screw | Steel | Plain | 5/8-11 x 3 1/2 | flat hd socket c/s h t astm f835 3a thrd | 100 |
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| XL Screw | GA | Flat Head Socket Cap Screw | Steel | Plain | 3/4-10 x 3 1/2 | flat hd socket c/s h t astm f835 3a thrd | 70 |
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| SII | IN | Flat Head Socket Cap Screw | Steel | Plain | 1/4-20 x 3 1/2 | 1/4-20 x 3-1/2 fhscs) | 50 |
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| SII | IN | Flat Head Socket Cap Screw | Steel | Plain | 5/16-18 x 3 1/2 | 5/16-18 x 3-1/2 flat head socket cap screw) b18.2.1 b18.3 | 125 |
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| MidStates | MI | Flat Head Socket Cap Screw | Steel | Plain | 3/4-16 x 3 1/2 | flat soc c/s | 6 |
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| MidStates | MI | Flat Head Socket Cap Screw | Steel | Zinc/Clear | 1-8 x 3 1/2 | flat soc c/s znc | 2 |
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| MidStates | MI | Flat Head Socket Cap Screw | Steel | Zinc/Clear | 3/4-10 x 3 1/2 | flat soc c/s znc | 25 |
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| MidStates | MI | Flat Head Socket Cap Screw | Steel | Plain | 1 1/4-7 x 3 1/2 | flat soc c/s | 2 |
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| MidStates | MI | Flat Head Socket Cap Screw | Steel | Zinc/Black | 1/4-20 x 3 1/2 | flat soc c/s blk znc | 800 |
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| MidStates | MI | Flat Head Socket Cap Screw | Steel | Zinc/Clear | 5/8-11 x 3 1/2 | 5/8-11 x 3 1/2 flat soc c/s prem znc | 94 |
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| WDMB | IA | Flat Head Socket Cap Screw | Steel | Plain | 5/8-18 x 3 1/2 | scr flat socket alloy 5/8-18x3 1/2 (W020) | 225 |
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| MTP | CA | Flat Head Socket Cap Screw | Steel | Zinc/Clear | 3/8-16 x 3 1/2 | 3/8-16 x 3 1/2 zn flat hd socket screws | stock |
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| MTP | CA | Flat Head Socket Cap Screw | Steel | Zinc/Clear | 1/2-13 x 3 1/2 | 1/2-13 x 3 1/2 zn flat hd socket screws | stock |
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| MTP | CA | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 3 1/2 | 1/4-20 x 3 1/2 s.s 18-8 flat hd socket screw | stock |
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| OneMonroe | TX | Flat Head Socket Cap Screw | Steel | Plain | 1/4-20 x 3 1/2 | screw flat socket cap 1/4-20x3.50 st pl | 8 |
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| Northern | MN | Flat Head Socket Cap Screw | Steel | Zinc/Clear | 5/8-11 x 3 1/2 | flat socket c/s & bake | 50 |
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| HBBOLT | CA | Flat Head Socket Cap Screw | Steel | Plain | 1-8 x 3 1/2 | fh socket cap | 2 |
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| HBBOLT | CA | Flat Head Socket Cap Screw | Steel | Plain | 3/8-16 x 3 1/2 | flat socket c/s | 37 |
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| HBBOLT | CA | Flat Head Socket Cap Screw | Steel | Plain | 5/16-18 x 3 1/2 | flat f torx flr brd t40 blk | 35 |
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| HBBOLT | CA | Flat Head Socket Cap Screw | Steel | Plain | 1/2-13 x 3 1/2 | flat hd soc sc | 30 |
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| HBBOLT | CA | Flat Head Socket Cap Screw | Steel | Plain | 1/4-20 x 3 1/2 | fh socket c/s | 90 |
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| HBBOLT | CA | Flat Head Socket Cap Screw | Steel | Plain | 5/16-18 x 3 1/2 | flat soc c/s blk | 17 |
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| Delta | TX | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/4-10 x 3 1/2 | flat soc c/s 18-8 sst 3/4-10 x 3 1/2 | 200 |
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| Delta | TX | Flat Head Socket Cap Screw | Steel | Plain | 1/4-20 x 3 1/2 | flat soc c/s alloy 1/4-20 x 3 1/2 | 248 |
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| Delta | TX | Flat Head Socket Cap Screw | Steel | Plain | 5/16-18 x 3 1/2 | flat soc c/s alloy 5/16-18 x 3 1/2 | 328 |
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| Delta | TX | Flat Head Socket Cap Screw | Steel | Plain | 3/8-16 x 3 1/2 | flat soc c/s alloy 3/8-16 x 3 1/2 (BULK - 112A) | 3087 |
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| Delta | TX | Flat Head Socket Cap Screw | Steel | Plain | 5/8-11 x 3 1/2 | flat soc c/s alloy 5/8-11x3 1/2 | 71 |
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| WDMB | IA | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8-16 x 3 1/2 | screw flat soc (18 8) 3/8-16x3 1/2 | 200 |
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| WDMB | IA | Flat Head Socket Cap Screw | Steel | Plain | 1/2-13 x 3 1/2 | screw flat soc alloy 1/2-13x3 1/2 (W0M0) (W0M0) | 593 |
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| SunPack | FL | Flat Head Socket Cap Screw | Steel | Fluoropolymer-Based (Xylan, Fluorokote, Teflon) | 5/8-11 x 3 1/2 | 5/8-11 x 3-1/2 alloy steel flat hd socket cap screw ptfe blue | 25 |
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| QFC | TX | Flat Head Socket Cap Screw | Steel | Plain | 5/8-11 x 3 1/2 | 5/8-11x3 1/2 flat soc c/s plain b18.2.1 b18.3 | 47 |
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| B & K FAST | PA | Flat Head Socket Cap Screw | Steel | Plain | 1/4-20 x 3 1/2 | 1/4-20 x 3 1/2 flat hd socket cap screw b18.2.1 b18.3 | 178 |
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| B & K FAST | PA | Flat Head Socket Cap Screw | Steel | Plain | 5/16-18 x 3 1/2 | 5/16-18 x 3 1/2 flat hd socket cap screw b18.2.1 b18.3 | 297 |
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| B & K FAST | PA | Flat Head Socket Cap Screw | Steel | Plain | 3/8-16 x 3 1/2 | 3/8-16 x 3 1/2 flat hd socket cap screws b18.2.1 b18.3 | 160 |
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| B & K FAST | PA | Flat Head Socket Cap Screw | Steel | Plain | 1/2-13 x 3 1/2 | 1/2-13 x 3 1/2 flat hd socket cap screws b18.2.1 b18.3 | 100 |
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| B & K FAST | PA | Flat Head Socket Cap Screw | Steel | Plain | 5/8-11 x 3 1/2 | 5/8-11 x 3 1/2 flat hd socket cap screws b18.2.1 b18.3 | 177 |
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| B & K FAST | PA | Flat Head Socket Cap Screw | Steel | Plain | 5/8-18 x 3 1/2 | 5/8-18 x 3 1/2 flat hd socket cap screws b18.2.1 b18.3 | 5 |
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| B & K FAST | PA | Flat Head Socket Cap Screw | Steel | Plain | 3/4-10 x 3 1/2 | 3/4-10 x 3 1/2 flat hd socket cap screws b18.2.1 b18.3 | 96 |
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| B & K FAST | PA | Flat Head Socket Cap Screw | Steel | Plain | 7/8-9 x 3 1/2 | 7/8-9 x 3 1/2 flat hd socket cap screws b18.2.1 b18.3 | 4 |
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| B & K FAST | PA | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 3 1/2 | 1/4-20 x 3 1/2 flat socket cap screws 18-8 ss b18.2.1 b18.3 | 30 |
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| Lubker Di | PA | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 3 1/2 | 1/4-20x3 1/2 flat shcs 18.8 s/s | 556 |
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| Lubker Di | PA | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/8-11 x 3 1/2 | 5/8-11x3 1/2 flat shcs 18.8 s/s | 50 |
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| ACF | CA | Flat Head Socket Cap Screw | Steel | Plain | 1/4-20 x 3 1/2 | 1/4-20x3-1/2 flat thermal black | 150 |
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| OSSCO | RI | Flat Head Socket Cap Screw | Steel | Plain | 1/4-20 x 3 1/2 | 1/4-20x3 1/2 flat soc cap screw b18.2.1 b18.3 | 100 |
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| QFC | TX | Flat Head Socket Cap Screw | Steel | Plain | 3/8-16 x 3 1/2 | 3/8-16x3 1/2 flat skt cap screw b18.2.1 b18.3 | 1963 |
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| QFC | TX | Flat Head Socket Cap Screw | Steel | Plain | 7/8-9 x 3 1/2 | 7/8-9x3 1/2 flat soc c/s plain b18.2.1 b18.3 | 30 |
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| Delta | TX | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 3 1/2 | flat soc c/s 18-8 sst 1/4-20 x 3 1/2 | 65 |
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| BHAM | AL | Flat Head Socket Cap Screw | Steel | Plain | 1-8 x 3 1/2 | flat soc c/sr | 24 |
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| BHAM | AL | Flat Head Socket Cap Screw | Steel | Plain | 7/8-9 x 3 1/2 | flat soc cap m.g. | 1 |
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| Lippin | CA | Flat Head Socket Cap Screw | 316, 317, A4 Stainless | Plain | 5/16-18 x 3 1/2 | 5/16-18 x 3 1/2 flat head socket cap stainless 316 | 80 |
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| Lippin | CA | Flat Head Socket Cap Screw | Steel | Plain | 3/4-10 x 3 1/2 | socket cap screw flat head plain | 46 |
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| Lippin | CA | Flat Head Socket Cap Screw | Steel | Plain | 1/2-20 x 3 1/2 | socket cap screw flat head fine plain | 50 |
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| Lippin | CA | Flat Head Socket Cap Screw | Steel | Plain | 5/8-18 x 3 1/2 | socket cap screw flat head fine plain | 50 |
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| Lippin | CA | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8-16 x 3 1/2 | socket cap screw flat head stainless 18-8 | 40 |
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| Lippin | CA | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/8-11 x 3 1/2 | socket cap screw flat head stainless 18-8 | 20 |
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| FastWare | Sask | Flat Head Socket Cap Screw | Steel | Zinc/Yellow | 3/4-16 x 3 1/2 | nf flat socket c/s | 86 |
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| FastWare | Sask | Flat Head Socket Cap Screw | Steel | Plain | 1-8 x 3 1/2 | nc flat socket c/s | 51 |
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| FastWare | Sask | Flat Head Socket Cap Screw | Steel | Plain | 5/8-18 x 3 1/2 | nf flat socket c/s | 19 |
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| FastWare | Sask | Flat Head Socket Cap Screw | Steel | Plain | 1/2-13 x 3 1/2 | nc flat socket c/s | 20 |
|
| FastWare | Sask | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3 1/2 | nc flat socket c/s 18.8ss | 8 |
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| FastWare | Sask | Flat Head Socket Cap Screw | Steel | Zinc/Yellow | 3/4-10 x 3 1/2 | nc flat socket c/s | 28 |
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| FastWare | Sask | Flat Head Socket Cap Screw | Steel | Plain | 5/8-11 x 3 1/2 | nc flat socket c/s | 1 |
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| SRF | AL | Flat Head Socket Cap Screw | Steel | Plain | 1/2-13 x 3 1/2 | flat soc c/s | 19 |
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| SRF | AL | Flat Head Socket Cap Screw | Steel | Plain | 1/2-20 x 3 1/2 | flat soc c/s | - |
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| Wurth Ada | MN | Flat Head Socket Cap Screw | Steel | Plain | 5/8-11 x 3 1/2 | scr flat soc alloy 5/8-11x3 1/2 | 75 |
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| ASFCORP | MI | Flat Head Socket Cap Screw | Steel | Black Oxide | 1/2-13 x 3 1/2 | 1/2-13 x 3 1/2 flt hd soc cap blk ox pkg | 63 |
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| NWFAST | TX | Flat Head Socket Cap Screw | Steel | Black Oxide | 5/8-11 x 3 1/2 | 5/8-11 x 3 1/2 flat head socket cap screw alloy steel black oxide b18.2.1 b18.3 | 552 |
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| OBRIEN | OH | Flat Head Socket Cap Screw | Steel | Plain | 5/16-18 x 3 1/2 | flat socket cap | 80 |
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| OBRIEN | OH | Flat Head Socket Cap Screw | Steel | Plain | 1/2-13 x 3 1/2 | flat socket cap | 10 |
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| THRDFAST | FL | Flat Head Socket Cap Screw | Steel | Plain | 1/4-20 x 3 1/2 | flat socket c/s b18.2.1 b18.3 | 43 |
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| THRDFAST | FL | Flat Head Socket Cap Screw | Steel | Plain | 3/4-10 x 3 1/2 | flat socket c/s b18.2.1 b18.3 | 20 |
|
| THRDFAST | FL | Flat Head Socket Cap Screw | Steel | Plain | 5/16-18 x 3 1/2 | flat socket c/s b18.2.1 b18.3 | 3 |
|
| THRDFAST | TN | Flat Head Socket Cap Screw | Steel | Plain | 5/16-18 x 3 1/2 | flat socket c/s b18.2.1 b18.3 | 300 |
|
| THRDFAST | TN | Flat Head Socket Cap Screw | Steel | Plain | 1/2-20 x 3 1/2 | flat socket b18.2.1 b18.3 | 50 |
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| KBS | TN | Flat Head Socket Cap Screw | Steel | Plain | 3/8-16 x 3 1/2 | 3/8-16 x 3 1/2 flat soc cap screw b18.2.1 b18.3 | 887 |
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| THRDFAST | AL | Flat Head Socket Cap Screw | Steel | Plain | 1-8 x 3 1/2 | flat socket c/s b18.2.1 b18.3 | 9 |
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| All Size | TX | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 3 1/2 | 1/4-20 x 3 1/2 flat head socket cap s/s b18.2.1 b18.3 | 11 |
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| BRIGHBEST | IL | Flat Head Socket Cap Screw | Steel | Zinc/Clear | 3/8-16 x 3 1/2 | 3/8-16 x 3 1/2 flat socket cap hardened clear bake | 800 |
|
| BRIGHBEST | IL | Flat Head Socket Cap Screw | Steel | Phosphate | 1-8 x 3 1/2 | 1-8 x 3 1/2 flat socket hardened phos. & oil | 600 |
|
| FMP | MA | Flat Head Socket Cap Screw | Steel | Black Oxide | 3/8-16 x 3 1/2 | flat socket | 130 |
|
| FMP | MA | Flat Head Socket Cap Screw | Steel | Black Oxide | 1/2-13 x 3 1/2 | flat socket | 40 |
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| Valley Nu | WA | Flat Head Socket Cap Screw | Steel | Plain | 1/4-20 x 3 1/2 | nc flat hd socket c/s pl | 150 |
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| Valley Nu | WA | Flat Head Socket Cap Screw | Steel | Plain | 5/16-18 x 3 1/2 | nc flat hd socket c/s pl | 110 |
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| Valley Nu | WA | Flat Head Socket Cap Screw | Steel | Plain | 3/8-16 x 3 1/2 | nc flat hd socket c/s pl | 38 |
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| Valley Nu | WA | Flat Head Socket Cap Screw | Steel | Plain | 1/2-13 x 3 1/2 | nc flat hd socket c/s pl | 9 |
|
| Valley Nu | WA | Flat Head Socket Cap Screw | Steel | Plain | 3/4-10 x 3 1/2 | nc flat hd socket c/s pl | 3 |
|
| Valley Nu | WA | Flat Head Socket Cap Screw | Steel | Plain | 1-8 x 3 1/2 | nc flat hd socket c/s pl | 2 |
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| Va lley Nu | WA | Flat Head Socket Cap Screw | Steel | Plain | 7/8-9 x 3 1/2 | nc flat hd socket c/s pl | 7 |
|
| SeattleNB | WA | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 3 1/2 | flat soc cs 18-8 ss | 587 |
|
| SeattleNB | WA | Flat Head Socket Cap Screw | 316, 317, A4 Stainless | Plain | 5/16-18 x 3 1/2 | flat soc cs 316 ss | 2,500 |
|
| SeattleNB | WA | Flat Head Socket Cap Screw | 316, 317, A4 Stainless | Plain | 3/8-16 x 3 1/2 | flat soc cs 316 ss | 900 |
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| ACCURATE | IL | Flat Head Socket Cap Screw | Brass | Plain | 7/8-9 x 3 1/2 | flat socket socket c/s | 107 |
|
| ACCURATE | IL | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #10-24 x 3 1/2 | flat socket f/t socket c/s 18-8ss | 2,566 |
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