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Hex Cap Screws, All ASME Grades of Steel (ASME B18. 2.1)

Hex Cap Screws are hex headed fasteners with external machine screw threads and differ from hex machine bolts by having a washer surface on the underside or bearing side of the head and a chamfered thread end. Hex cap screws have tighter dimensional tolerances than bolts. Metric hex cap screws are specified by various DIN, ISO and JIS standards, and US/Imperial hex cap screws are dimensionally specified by the ASME B18.2.1 specification.

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
SIIINHex Head Cap ScrewGrade 2Zinc/Clear1/2-13 x 2 1/21/2-13x2-1/2 grade 2 hex cap screw zinc cr+3 b18.2.11100
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B & K FASTPAHex Head Cap ScrewGrade 8Zinc/Yellow5/8-18 x 2 1/25/8-18x2 1/2 hex cap screws grade 8 z yellow b18.2.118
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B & K FASTPAHex Head Cap ScrewGrade 5Zinc/Clear1/4-28 x 1 1/21/4-28 x 1 1/2 hex cap screws gr 5 zinc w/ long lok strip b18.2.1716
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B & K FASTPAHex Head Cap ScrewGrade 5Zinc/Clear5/16-18 x 15/16-18 x 1 hex cap screws gr 5 zinc b18.2.11512
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B & K FASTPAHex Head Cap ScrewGrade 8Zinc/Clear3/8-24 x 3 1/23/8-24 x 3 1/2 hex cap screws gr 8 zinc b18.2.110
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B & K FASTPAHex Head Cap ScrewGrade 2Plain3/8-24 x 43/8-24 x 4 hex cap screws gr 2 plain b18.2.17
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B & K FASTPAHex Head Cap ScrewGrade 5Zinc/Clear3/8-24 x 4 1/43/8-24 x 4 1/4 hex cap screws gr 5 zinc b18.2.121
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B & K FASTPAHex Head Cap ScrewGrade 2Plain3/8-24 x 53/8-24 x 5 hex cap screws gr 2 plain b18.2.120
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B & K FASTPAHex Head Cap ScrewGrade 8Plain3/8-24 x 53/8-24 x 5 hex cap screws gr 8 plain b18.2.125
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B & K FASTPAHex Head Cap ScrewGrade 8Zinc/Yellow3/8-24 x 5 3/43/8-24 x 5 3/4 hex cap screws gr 8 z yellow b18.2.12
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B & K FASTPAHex Head Cap ScrewGrade 8Plain3/8-24 x 6 1/23/8-24 x 6 1/2 hex cap screws gr 8 plain b18.2.131
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B & K FASTPAHex Head Cap ScrewGrade 8Plain3/8-24 x 73/8-24 x 7 hex cap screws gr 8 plain b18.2.11
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B & K FASTPAHex Head Cap ScrewGrade 8Zinc/Yellow3/8-24 x 73/8-24 x 7 hex cap screws gr 8 z yellow b18.2.120
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B & K FASTPAHex Head Cap ScrewGrade 5Zinc/Clear3/8-24 x 7 1/23/8-24 x 7 1/2 hex cap screws gr 5 zinc b18.2.11
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B & K FASTPAHex Head Cap ScrewGrade 8Zinc/Yellow3/8-24 x 7 1/23/8-24 x 7 1/2 hex cap screws gr 8 z yellow b18.2.11
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B & K FASTPAHex Head Cap ScrewGrade 5Plain3/8-24 x 83/8-24 x 8 hex cap screws gr 5 plain b18.2.113
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B & K FASTPAHex Head Cap ScrewGrade 2Plain7/16-14 x 3/47/16-14 x 3/4 hex cap screws gr 2 plain b18.2.141
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B & K FASTPAHex Head Cap ScrewGrade 2Zinc/Clear7/16-14 x 3/47/16-14 x 3/4 hex cap screws gr 2 zinc b18.2.161
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B & K FASTPAHex Head Cap ScrewGrade 5Plain7/16-14 x 7/87/16-14 x 7/8 hex cap screws gr 5 plain b18.2.1825
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B & K FASTPAHex Head Cap ScrewGrade 5Zinc/Clear7/16-14 x 7/87/16-14 x 7/8 hex cap screws gr 5 zinc b18.2.1399
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B & K FASTPAHex Head Cap ScrewGrade 8Zinc/Clear7/16-14 x 17/16-14 x 1 hex cap screws gr 8 zinc b18.2.121
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