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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.

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
AbabaCAFlat Head Socket Cap ScrewSteelPlain1/4-20 x 3 1/41/4-20 x 3 1/4 flt soc cap alloy b18.2.1 b18.375
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GLFOHFlat Head Socket Cap ScrewSteelZinc/Yellow3/4-10 x 3 1/43/4-10x3-1/4 flat (ft) stl zy b18.2.1 b18.3 () () ()21838
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WeaverWAFlat Head Socket Cap ScrewSteelPlain3/8-16 x 3 1/43/8-16x3 1/4 flat hd socket c/s plain25
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WeaverWAFlat Head Socket Cap ScrewSteelPlain3/8-24 x 3 1/43/8-24x3 1/4 flat hd socket c/s plain50
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WeaverWAFlat Head Socket Cap ScrewSteelZinc/Clear3/8-24 x 3 1/43/8-24x3 1/4 flat hd socket c/s zinc200
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Future FastenerTXFlat Head Socket Cap ScrewSteelBlack Oxide3/8-16 x 3 1/43/8-16 x 3-1/4 flat hd soc cap scr blk50
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JacksonMSFlat Head Socket Cap ScrewSteelPlain1/2-13 x 3 1/4nc semi standard flat socket c/s100
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YANKEENHFlat Head Socket Cap ScrewSteelBlack Oxide1/4-20 x 3 1/41/4-20 x 3-1/4 flat socket head cap screw alloy steel black oxide50
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YANKEENHFlat Head Socket Cap ScrewSteelBlack Oxide1/2-13 x 3 1/41/2-13 x 3 1/4 flat head socket screw alloy blk ox26
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CenturyFLFlat Head Socket Cap ScrewSteelPlain1/4-20 x 3 1/41/4-20 x 3 1/4 flat head socket cap (SCREW ALLOY STEEL) (SCREW ALLOY STEEL) 3
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HayesCAFlat Head Socket Cap ScrewSteelPlain1/2-13 x 3 1/41/2-13 x 3 1/4 flat socket c/s alloy850
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BHAMALFlat Head Socket Cap ScrewSteelPlain3/4-10 x 3 1/43/4-10x3 1/4 flat soc cap scr b18.2.1 b18.395
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BHAMALFlat Head Socket Cap ScrewSteelPlain1/2-13 x 3 1/41/2-13x3 1/4 flat soc cap scr b18.2.1 b18.314
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ASMCILFlat Head Socket Cap ScrewSteelPlain3/4-10 x 3 1/4(ft) coarse socket flat hd c/s b18.340
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ASMCILFlat Head Socket Cap ScrewSteelPlain1/2-13 x 3 1/4(pt) coarse socket flat hd c/s b18.350
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ASMCILFlat Head Socket Cap ScrewSteelPlain3/8-24 x 3 1/4(pt) fine socket flat hd c/s25
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ManscoMIFlat Head Socket Cap ScrewSteelPlain3/8-16 x 3-1/4 flat hd soc cap scr pln 50/box1250
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MTPCAFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 3 1/43/8-16 x 3-1/4 s.s 18-8 flat hd socket screwstock
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ACCURATEILFlat Head Socket Cap ScrewSteelPlain3/4-10 x 3 1/4coarse flat socket c/s24
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CenturyNYFlat Head Socket Cap ScrewSteelPlain1/4-20 x 3 1/4 flat head socket cap screw alloy steel3
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LibertyILFlat Head Socket Cap ScrewSteelZinc/Clear5/8-11 x 3 1/4flat socket c/s c/s6
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Alma BoltMIFlat Head Socket Cap ScrewSteelPlain1/2-13 x 3 1/41/2-13 x 3 1/4 special flat hd socket cap screw alloy b18.2.1 b18.31813
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Fastener OHFlat Head Socket Cap ScrewSteelPlain1/2-13 x 3 1/4flat head socket cap screw 1/2-13x3-1/4 alloy15
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SWACOOHFlat Head Socket Cap ScrewSteelPlain3/4-10 x 3 1/43/4-10x3-1/4 flat alloy26
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SWACOOHFlat Head Socket Cap ScrewSteelPlain5/16-18 x 3 1/45/16-18x3-1/4 flat soc cap scs alloy plain61
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NutsBoltsNEFlat Head Socket Cap ScrewSteelPlain5/16-18 x 3 1/45/16-18x3 1/4 flat75
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NutsBoltsNEFlat Head Socket Cap ScrewSteelPlain3/8-16 x 3 1/43/8-16x3 1/4 flat30
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MidStatesMIFlat Head Socket Cap ScrewSteelPlain#10-32 x 3 1/4flat soc c/s69
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MTPCAFlat Head Socket Cap ScrewSteelZinc/Clear3/8-16 x 3 1/43/8-16 x 3 1/4 zn flat hd socket screwsstock
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MTPCAFlat Head Socket Cap ScrewSteelZinc/Clear1/2-13 x 3 1/41/2-13 x 3 1/4 zn flat hd socket screwsstock
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NutsBoltsNEFlat Head Socket Cap ScrewSteelPlain1/4-20 x 3 1/41/4-20x3 1/4 flat
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HBBOLTCAFlat Head Socket Cap ScrewSteelZinc/Clear5/8-11 x 3 1/4flat socket c/s22
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StandardMAFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 3 1/43/8-16x3-1/4 hex flat cap screw 18-8 s/s steel3475
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StandardMAFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 3 1/41/2-13x3-1/4 flat head socket cap screw 18-8 s/s steel400
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StandardMAFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 3 1/45/16-18x3-1/4 hex flat cap screw 18-8 s/s steel281
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StandardMAFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 3 1/41/4-20x3-1/4 flat head socket cap screw 18-8 s/s steel-2750
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FasSpcMfgFLFlat Head Socket Cap ScrewSteelPlain1/4-20 x 3 1/4flat socket cap9
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FasSpcMfgFLFlat Head Socket Cap Screw316, 317, A4 StainlessPlain3/8-16 x 3 1/4flat hd soc cap 316 stn2
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FasSpcMfgFLFlat Head Socket Cap ScrewSteelPlain5/8-11 x 3 1/4flat socket cap 4140 rc 37-442
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FasSpcMfgFLFlat Head Socket Cap ScrewSteelPlain5/8-11 x 3 1/4flat socket cap3
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SRFALFlat Head Socket Cap ScrewSteelPlain3/8-16 x 3 1/4flat soc c/s3
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THRDFASTTNFlat Head Socket Cap ScrewSteelPlain1/4-20 x 3 1/4flat socket cap b18.2.1 b18.375
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THRDFASTTNFlat Head Socket Cap ScrewSteelPlain1/2-13 x 3 1/4flat socket c/s b18.2.1 b18.35
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THRDFASTALFlat Head Socket Cap ScrewSteelPlain1/2-13 x 3 1/4flat socket c/s zi b18.2.1 b18.316
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All SizeTXFlat Head Socket Cap ScrewSteelPlain1/4-20 x 3 1/41/4-20 x 3 1/4 flat head socket cap b18.2.1 b18.322
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BRIGHBESTILFlat Head Socket Cap ScrewSteelPhosphate1-8 x 3 1/41-8 x 3 1/4 flat socket cap hardened phos & oil3480
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FMPMAFlat Head Socket Cap ScrewSteelBlack Oxide5/16-18 x 3 1/4flat socket22
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Valley NuWAFlat Head Socket Cap ScrewSteelPlain5/8-11 x 3 1/4nc flat hd socket c/s pl1
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