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Hex Cap Screws, Grade B8 (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 
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B & K FASTPAHex Head Cap ScrewGrade B8Plain3/8-16 x 3/43/8-16 x 3/4 hex cap screws a193b8 stainless b18.2.113
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B & K FASTPAHex Head Cap ScrewGrade B8Plain1/2-13 x 1 1/21/2-13 x 1 1/2 hex cap screws b8 stainless b18.2.182
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B & K FASTPAHex Head Cap ScrewGrade B8Plain1/2-13 x 2 1/41/2-13 x 2 1/4 hex cap screws b8 stainless nylon patch b18.2.152
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B & K FASTPAHex Head Cap ScrewGrade B8Plain3/4-10 x 2 1/43/4-10 x 2 1/4 heavy hex cap screws a193b8 stainless b18.2.11
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B & K FASTPAHex Head Cap ScrewGrade B8Plain3/4-10 x 2 1/23/4-10 x 2 1/2 heavy hex cap screws a193b8 stainless b18.2.15
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B & K FASTPAHex Head Cap ScrewGrade B8Plain3/4-10 x 43/4-10 x 4 a193b8 hvy hex cap screws stainless b18.2.18
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QFCTXHex Head Cap ScrewGrade B8Plain3/4-10 x 7/123/4-10 x 7/12 hcs b8 plain b18.2.155
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QFCTXHex Head Cap ScrewGrade B8Plain1/2-13 x 1 1/21/2-13x1 1/2 hex c/s b8 100% domestic b18.2.12
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THRDFASTALHex Head Cap ScrewGrade B8Plain5/8-11 x 2 1/2b8t (321 ss) ss hex cap b18.2.12
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WSBKYHex Head Cap ScrewGrade B8Plainq/screw hcs b8 (pl) 1/4-20x1 3/4 b18.2.1600
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