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4 1/2 inch length Flat Head Cap Screws (ASME B18. 3)

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 
GLFOHFlat Head Socket Cap ScrewSteelPlain1 1/4-7 x 4 1/21-1/4-7x4-1/2 flat stl pln b18.2.1 b18.3 () () ()12
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BHAMALFlat Head Socket Cap ScrewSteelPlain1-8 x 4 1/21-8x4 1/2 flat soc cap scr b18.2.1 b18.359
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BHAMALFlat Head Socket Cap ScrewSteelPlain3/4-10 x 4 1/23/4-10x4 1/2 flat soc cap scr b18.2.1 b18.3248
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AbabaCAFlat Head Socket Cap ScrewSteelPlain3/4-10 x 4 1/23/4-10 x 4 1/2 flat soc cap screw alloy b18.2.1 b18.311
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ASMCILFlat Head Socket Cap ScrewSteelPlain7/8-9 x 4 1/27/8-9x4 1/2 (pt) coarse socket flat hd cap screw alloy pln b18.2.1 b18.34
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ASMCILFlat Head Socket Cap ScrewSteelPlain1/2-13 x 4 1/2(pt) coarse socket flat hd c/s b18.372
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B & K FASTPAFlat Head Socket Cap ScrewSteelPlain3/8-16 x 4 1/23/8-16 x 4 1/2 flat hd socket cap screws b18.2.1 b18.346
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B & K FASTPAFlat Head Socket Cap ScrewSteelPlain5/8-11 x 4 1/25/8-11 x 4 1/2 flat hd socket cap screws b18.2.1 b18.33
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B & K FASTPAFlat Head Socket Cap ScrewSteelPlain7/8-9 x 4 1/27/8-9 x 4 1/2 flat hd socket cap screws b18.2.1 b18.312
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B & K FASTPAFlat Head Socket Cap ScrewSteelPlain1-8 x 4 1/21-8 x 4 1/2 flat hd socket cap screws b18.2.1 b18.37
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QFCTXFlat Head Socket Cap ScrewSteelPlain5/8-11 x 4 1/25/8-11x4 1/2 flat soc c/s alloy plain b18.2.1 b18.34
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THRDFASTFLFlat Head Socket Cap ScrewSteelPlain1/2-13 x 4 1/2flat socket c/s b18.2.1 b18.31
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THRDFASTTNFlat Head Socket Cap ScrewSteelPlain5/16-18 x 4 1/2flat socket c/s b18.2.1 b18.36
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THRDFASTALFlat Head Socket Cap ScrewSteelPlain1-8 x 4 1/2flat socket c/s b18.2.1 b18.310
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WSBKYFlat Head Socket Cap ScrewSteelPlain3/8-16 x 4 1/2screw flat soc alloy 3/8-16x4 1/2 b18.2.1 b18.3699
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All SizeTXFlat Head Socket Cap ScrewSteelPlain5/8-11 x 4 1/25/8-11 x 4 1/2 flat head socket cap b18.2.1 b18.3109
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All SizeTXFlat Head Socket Cap ScrewSteelPlain3/4-10 x 4 1/23/4-10 x 4 1/2 flat head socket cap b18.2.1 b18.324
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All SizeTXFlat Head Socket Cap ScrewSteelPlain3/8-16 x 4 1/23/8-16 x 4 1/2 flat head socket cap b18.2.1 b18.3160
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