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3 1/4 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.
52 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 | |
| Weaver | WA | Flat Head Socket Cap Screw | Steel | Plain | 3/8-24 x 3 1/4 | 3/8-24x3 1/4 flat hd socket c/s plain | 50 |
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| Weaver | WA | Flat Head Socket Cap Screw | Steel | Zinc/Clear | 3/8-24 x 3 1/4 | 3/8-24x3 1/4 flat hd socket c/s zinc | 200 |
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| Jackson | MS | Flat Head Socket Cap Screw | Steel | Plain | 1/2-13 x 3 1/4 | nc semi standard flat socket c/s | 100 |
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| SWACO | OH | Flat Head Socket Cap Screw | Steel | Plain | 3/4-10 x 3 1/4 | 3/4-10x3-1/4 flat alloy | 26 |
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| SWACO | OH | Flat Head Socket Cap Screw | Steel | Plain | 5/16-18 x 3 1/4 | 5/16-18x3-1/4 flat soc cap scs alloy plain | 61 |
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| R&S Indus | OR | Flat Head Socket Cap Screw | Steel | Plain | 1/2-13 x 3 1/4 | 1/2-13x3 1/4 (pt) flat socket caps coarse alloy thermal black oxide | 34 |
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| Hayes | CA | Flat Head Socket Cap Screw | Steel | Plain | 1/2-13 x 3 1/4 | 1/2-13 x 3 1/4 flat socket c/s alloy | 850 |
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| ACCURATE | IL | Flat Head Socket Cap Screw | Steel | Plain | 3/4-10 x 3 1/4 | coarse flat socket c/s | 24 |
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| BHAM | AL | Flat Head Socket Cap Screw | Steel | Plain | 3/4-10 x 3 1/4 | 3/4-10x3 1/4 flat soc cap scr b18.2.1 b18.3 | 70 |
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| BHAM | AL | Flat Head Socket Cap Screw | Steel | Plain | 3/4-10 x 3 1/4 | 3/4-10 x 3-1/4 flat head auditorx | | 1400 |
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| YANKEE | NH | Flat Head Socket Cap Screw | Steel | Black Oxide | 1/4-20 x 3 1/4 | 1/4-20 x 3-1/4 flat socket head cap screw alloy steel black oxide | 50 |
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| YANKEE | NH | Flat Head Socket Cap Screw | Steel | Black Oxide | 1/2-13 x 3 1/4 | 1/2-13 x 3 1/4 flat head socket screw alloy blk ox | 26 |
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| GLF | OH | Flat Head Socket Cap Screw | Steel | Zinc/Yellow | 3/4-10 x 3 1/4 | 3/4-10x3-1/4 flat (ft) stl zy b18.2.1 b18.3 () () () | 12269,000 |
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| Century | FL | Flat Head Socket Cap Screw | ASTM A574 | Plain | 1/4-20 x 3 1/4 | 1/4-20 x 3 1/4 flat head socket cap screw alloy steel | 3 |
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| FasSpcMfg | FL | Flat Head Socket Cap Screw | ASTM A574 | Plain | 1/4-20 x 3 1/4 | 1/4-20 x 3-1/4 flat head socket cap alloy | 9 |
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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 1/4 | 3/8-16 x 3-1/4 flat head socket cap 310 stainless | 2 |
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| FasSpcMfg | FL | Flat Head Socket Cap Screw | 316, 317, A4 Stainless | Plain | 3/8-16 x 3 1/4 | 3/8-16 x 3 1/4 flat hd soc cap 316 stn | 2 |
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| FasSpcMfg | FL | Flat Head Socket Cap Screw | ASTM A574 | Plain | 5/8-11 x 3 1/4 | 5/8-11 x 3-1/4 flat head socket cap alloy | 3 |
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| FasSpcMfg | FL | Flat Head Socket Cap Screw | 316, 317, A4 Stainless | Plain | 3/8-16 x 3 1/4 | 3/8-16 x 3 1/4 flat hd soc cap 316 stn | 2 |
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| FasSpcMfg | FL | Flat Head Socket Cap Screw | ASTM A574 | Plain | 1/4-20 x 3 1/4 | 1/4-20 x 3-1/4 flat head socket cap alloy | 9 |
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| FasSpcMfg | FL | Flat Head Socket Cap Screw | ASTM A574 | Plain | 5/8-11 x 3 1/4 | 5/8-11 x 3-1/4 flat head socket cap alloy | 3 |
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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 1/4 | 3/8-16 x 3-1/4 flat head socket cap 310 stainless | 2 |
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| Alma Bolt | MI | Flat Head Socket Cap Screw | ASTM A574 | Plain | 3/8-16 x 3 1/4 | 3/8-16 x 3 1/4 | flat hd socket cap screw alloy | 36 |
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| Alma Bolt | MI | Flat Head Socket Cap Screw | ASTM A574 | Plain | 3/8-16 x 3 1/4 | 3/8-16 x 3 1/4 | flat hd socket cap screw alloy | 94 |
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| Alma Bolt | MI | Flat Head Socket Cap Screw | ASTM A574 | Plain | 5/16-18 x 3 1/4 | 5/16-18 x 3 1/4 | flat hd socket cap screw alloy | 88 |
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| Alma Bolt | MI | Flat Head Socket Cap Screw | ASTM A574 | Plain | #10-24 x 3 1/4 | #10-24 x 3 1/4 special | flat hd socket cap screw alloy | 88 |
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| Alma Bolt | MI | Flat Head Socket Cap Screw | ASTM A574 | Plain | 5/8-11 x 3 1/4 | 5/8-11 x 3 1/4 | flat hd socket cap screw alloy | 7 |
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| Alma Bolt | MI | Flat Head Socket Cap Screw | Steel | Plain | 1/2-13 x 3 1/4 | 1/2-13 x 3 1/4 special flat hd socket cap screw alloy b18.2.1 b18.3 | 491 |
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| OneMonroe | MA | Flat Head Socket Cap Screw | Steel | Black Oxide | 1/2-13 x 3 1/4 | 1/2-13 x 3-1/4 black oxide finish flat socket cap screw | 10 |
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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 1/4 | 3/8-16 x 3-1/4 s.s 18-8 flat hd socket screw | stock |
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| Liberty | IL | Flat Head Socket Cap Screw | Steel | Zinc/Clear | 5/8-11 x 3 1/4 | flat socket c/s c/s | 6 |
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| Future Fastener | TX | Flat Head Socket Cap Screw | Steel | Black Oxide | 3/8-16 x 3 1/4 | 3/8-16 x 3-1/4 flat hd soc cap scr blk | 50 |
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| R&S Indus | OR | Flat Head Socket Cap Screw | Steel | Plain | 3/4-10 x 3 1/4 | 3/4-10x3 1/4 (ft) flat socket caps coarse alloy thermal black oxide | 15 |
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| Raw Produ | NJ | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 3 1/4 | flat head socket cap screws 304 ss 1/2-13 x 3-1/4 | 50 |
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| BHAM | AL | Flat Head Socket Cap Screw | Steel | Plain | 1/2-13 x 3 1/4 | 1/2-13x3 1/4 flat soc cap scr b18.2.1 b18.3 | 14 |
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| Fastener | OH | Flat Head Socket Cap Screw | Steel | Plain | 1/2-13 x 3 1/4 | flat head socket cap screw 1/2-13x3-1/4 alloy | 15 |
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| Mansco | MI | Flat Head Socket Cap Screw | Steel | Plain | 3/8-16 x 3-1/4 flat hd soc cap scr pln 50/box | 1150 |
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| Ababa | CA | Flat Head Socket Cap Screw | Steel | Plain | 1/4-20 x 3 1/4 | 1/4-20 x 3 1/4 flt soc cap alloy b18.2.1 b18.3 | 75 |
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| Weaver | WA | Flat Head Socket Cap Screw | Steel | Plain | 3/8-16 x 3 1/4 | 3/8-16x3 1/4 flat hd socket c/s plain | 25 |
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| Century | NY | Flat Head Socket Cap Screw | Steel | Plain | 1/4-20 x 3 1/4 flat head socket cap screw alloy steel | 3 |
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| MidStates | MI | Flat Head Socket Cap Screw | Steel | Plain | #10-32 x 3 1/4 | flat soc c/s | 69 |
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| MTP | CA | Flat Head Socket Cap Screw | Steel | Zinc/Clear | 3/8-16 x 3 1/4 | 3/8-16 x 3 1/4 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 1/4 | 1/2-13 x 3 1/4 zn flat hd socket screws | stock |
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| HBBOLT | CA | Flat Head Socket Cap Screw | Steel | Zinc/Clear | 5/8-11 x 3 1/4 | flat socket c/s | 22 |
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| SRF | AL | Flat Head Socket Cap Screw | Steel | Plain | 3/8-16 x 3 1/4 | flat soc c/s | 3 |
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| THRDFAST | TN | Flat Head Socket Cap Screw | Steel | Plain | 1/4-20 x 3 1/4 | flat socket cap b18.2.1 b18.3 | 75 |
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| THRDFAST | TN | Flat Head Socket Cap Screw | Steel | Plain | 1/2-13 x 3 1/4 | flat socket c/s b18.2.1 b18.3 | 5 |
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| THRDFAST | AL | Flat Head Socket Cap Screw | Steel | Plain | 1/2-13 x 3 1/4 | flat socket c/s zi b18.2.1 b18.3 | 16 |
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| All Size | TX | Flat Head Socket Cap Screw | Steel | Plain | 1/4-20 x 3 1/4 | 1/4-20 x 3 1/4 flat head socket cap b18.2.1 b18.3 | 22 |
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| BRIGHBEST | IL | Flat Head Socket Cap Screw | Steel | Phosphate | 1-8 x 3 1/4 | 1-8 x 3 1/4 flat socket cap hardened phos & oil | 3480 |
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| FMP | MA | Flat Head Socket Cap Screw | Steel | Black Oxide | 5/16-18 x 3 1/4 | flat socket | 22 |
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| Valley Nu | WA | Flat Head Socket Cap Screw | Steel | Plain | 5/8-11 x 3 1/4 | nc flat hd socket c/s pl | 1 |
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