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Flat Head Cap Screws, Zinc/Black (ASME B18. 2.1)

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 
Irwin IndOntFlat Head Socket Cap ScrewSteelZinc/Black#4-40 x 1/44-40 x 1/4 flat steel soc cap .0002 min zinc trivalent black b18.2.1 b18.3836
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Irwin IndOntFlat Head Socket Cap ScrewSteelZinc/Black#4-40 x 1/24-40 x 1/2 flat steel soc cap .0002 min zinc trivalent black b18.2.1 b18.3 400
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Irwin IndOntFlat Head Socket Cap ScrewSteelZinc/Black#4-40 x 5/164-40 x 5/16 flat soc c/s stl .0002 min zinc trivalent black b18.2.1 b18.32200
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Irwin IndOntFlat Head Socket Cap ScrewSteelZinc/Black#6-32 x 3/86-32 x 3/8 flat steel soc cap .0002 min zinc trivalent black b18.2.1 b18.312456
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Irwin IndOntFlat Head Socket Cap ScrewSteelZinc/Black#4-40 x 3/84-40 x 3/8 flat soc c/s stl .0002 min zinc trivalent black b18.2.1 b18.34700
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Irwin IndOntFlat Head Socket Cap ScrewSteelZinc/Black#6-32 x 16-32 x 1 flat steel soc cap .0002 min zinc trivalent black b18.2.1 b18.3978
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Irwin IndOntFlat Head Socket Cap ScrewSteelZinc/Black#6-32 x 3/46-32 x 3/4 flat steel soc cap .0002 min zinc trivalent black b18.2.1 b18.33500
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Irwin IndOntFlat Head Socket Cap ScrewSteelZinc/Black#8-32 x 3/88-32 x 3/8 flat steel soc cap .0002 min zinc trivalent black b18.2.1 b18.35629
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Irwin IndOntFlat Head Socket Cap ScrewSteelZinc/Black#8-32 x 1/28-32 x 1/2 flat steel soc cap .0002 min zinc trivalent black b18.2.1 b18.32080
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Irwin IndOntFlat Head Socket Cap ScrewSteelZinc/Black#6-32 x 5/166-32 x 5/16 flat steel soc cap .0002 min zinc trivalent black b18.2.1 b18.39525
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Irwin IndOntFlat Head Socket Cap ScrewSteelZinc/Black#10-24 x 3/810-24 x 3/8 flat steel soc cap .0002 min zinc trivalent black b18.2.1 b18.38197
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Irwin IndOntFlat Head Socket Cap ScrewSteelZinc/Black#8-32 x 5/88-32 x 5/8 flat steel soc cap .0002 min zinc trivalent black b18.2.1 b18.33000
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Irwin IndOntFlat Head Socket Cap ScrewSteelZinc/Black#8-32 x 3/48-32 x 3/4 flat socket capscrew alloy steel black zinc triv 2 b18.2.1 b18.31500
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Irwin IndOntFlat Head Socket Cap ScrewSteelZinc/Black#10-24 x 5/810-24 x 5/8 flat steel soc cap .0002 min zinc trivalent black b18.2.1 b18.318191
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Irwin IndOntFlat Head Socket Cap ScrewSteelZinc/Black#10-24 x 3/410-24 x 3/4 flat steel soc cap .0002 min zinc trivalent black b18.2.1 b18.31000
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Irwin IndOntFlat Head Socket Cap ScrewSteelZinc/Black#10-24 x 110-24 x 1 flat steel soc cap .0002 min zinc trivalent black b18.2.1 b18.31975
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Irwin IndOntFlat Head Socket Cap ScrewSteelZinc/Black1/4-20 x 5/81/4-20 x 5/8 flat soc c/s stl .0002 min zinc trivalent black b18.2.1 b18.33992
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Irwin IndOntFlat Head Socket Cap ScrewSteelZinc/Black1/4-20 x 1/21/4-20 x 1/2 flat soc c/s stl .0002 min zinc trivalent black b18.2.1 b18.33540
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Irwin IndOntFlat Head Socket Cap ScrewSteelZinc/Black#10-32 x 3/810-32 x 3/8 flat sock c/s stl .0002 min zinc trivalent black b18.2.1 b18.34500
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Irwin IndOntFlat Head Socket Cap ScrewSteelZinc/Black1/4-20 x 7/81/4-20 x 7/8 flat soc c/s stl .0002 min zinc trivalent black b18.2.1 b18.34026
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AbabaCAFlat Head Socket Cap ScrewSteelZinc/Black1/2-13 x 3 3/41/2-13 x 3 3/4 flt soc cap alloy black zinc b18.2.1 b18.3102
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Irwin IndOntFlat Head Socket Cap ScrewSteelZinc/Black#6-32 x 1/46-32 x 1/4 flat steel soc cap .0002 min zinc trivalent black b18.2.1 b18.38950
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Irwin IndOntFlat Head Socket Cap ScrewSteelZinc/Black#10-24 x 1 1/410-24 x 1 1/4 flat stl soc cap .0002 min zinc trivalent black b18.2.1 b18.3693
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Irwin IndOntFlat Head Socket Cap ScrewSteelZinc/Black#10-24 x 1 1/210-24 x 1 1/2 flat stl soc cap .0002 min zinc trivalent black b18.2.1 b18.32500
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Irwin IndOntFlat Head Socket Cap ScrewSteelZinc/Black3/8-16 x 13/8-16 x 1 flat socket capscrew alloy steel black zinc triv 2 b18.2.1 b18.3200
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General FMIFlat Head Socket Cap ScrewSteelZinc/Black#10-24 x 3/410-24x.75 flat zn blk patch b18.2.1 b18.38,100
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