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Hex Cap Screws, Aluminum (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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AbabaCAHex Head Cap ScrewAluminumPlain1/4-20 x 11/4-20 x 1 h/c alum b18.2.159
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AbabaCAHex Head Cap ScrewAluminumPlain1/4-20 x 3/41/4-20 x 3/4 h/c alum b18.2.124
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AbabaCAHex Head Cap ScrewAluminumPlain5/16-18 x 2 1/45/16-18 x 2 1/4 h/c alum b18.2.137
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B & K FASTPAHex Head Cap ScrewAluminumPlain1/4-20 x 1 1/21/4-20 x 1 1/2 hex cap screws aluminum b18.2.1100
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B & K FASTPAHex Head Cap ScrewAluminumPlain5/16-18 x 25/16-18 x 2 hex cap screws aluminum b18.2.1169
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B & K FASTPAHex Head Cap ScrewAluminumPlain3/8-16 x 33/8-16 x 3 hex cap screws aluminum b18.2.16
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B & K FASTPAHex Head Cap ScrewAluminumPlain1/2-13 x 1 3/41/2-13 x 1 3/4 hex cap screws aluminum b18.2.1390
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B & K FASTPAHex Head Cap ScrewAluminumPlain5/8-11 x 1 1/25/8-11 x 1 1/2 hex cap screws aluminum b18.2.13
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B & K FASTPAHex Head Cap ScrewAluminumPlain5/8-11 x 1 3/45/8-11 x 1 3/4 hex cap screws aluminum b18.2.13
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OSSCORIHex Head Cap ScrewAluminumPlain1/4-20 x 1 1/21/4-20x1 1/2 hex cap screw alum b18.2.190
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OSSCORIHex Head Cap ScrewAluminumPlain1/4-20 x 11/4-20x1 hex cap screw alum b18.2.140
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OSSCORIHex Head Cap ScrewAluminumPlain3/8-16 x 1 1/23/8-16x1 1/2 hex cap screw alum b18.2.122
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OSSCORIHex Head Cap ScrewAluminumPlain1/2-13 x 31/2-13x3 hex cap screw alum b18.2.14
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THRDFASTFLHex Head Cap ScrewAluminumPlain1/4-20 x 1 1/4alum hex c/sr b18.2.13,310
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THRDFASTFLHex Head Cap ScrewAluminumPlain1/4-20 x 1alum hex c/s b18.2.11,028
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THRDFASTFLHex Head Cap ScrewAluminumPlain5/8-11 x 2 1/2alum hex c/s b18.2.1174
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THRDFASTFLHex Head Cap ScrewAluminumPlain3/8-16 x 2 1/2alum hex c/s b18.2.112
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THRDFASTFLHex Head Cap ScrewAluminumPlain3/8-16 x 3/4alum hex c/s b18.2.13
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THRDFASTFLHex Head Cap ScrewAluminumPlain3/8-16 x 1 1/4alum hex c/s b18.2.12
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THRDFASTFLHex Head Cap ScrewAluminumPlain5/16-18 x 3/4alum hex c/s b18.2.1494
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THRDFASTFLHex Head Cap ScrewAluminumPlain1/4-20 x 1alum hex c/s b18.2.170
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THRDFASTFLHex Head Cap ScrewAluminumPlain3/8-16 x 2 1/2alum hex c/s b18.2.132
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THRDFASTFLHex Head Cap ScrewAluminumPlain5/16-18 x 2alum hex c/s b18.2.122
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THRDFASTFLHex Head Cap ScrewAluminumPlain1/2-13 x 3 1/2alum hex c/s b18.2.112
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THRDFASTFLHex Head Cap ScrewAluminumPlain5/8-11 x 2alum hex c/s b18.2.14
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THRDFASTTNHex Head Cap ScrewAluminumPlain3/8-16 x 3/4alum hex c/s b18.2.1449
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THRDFASTALHex Head Cap ScrewAluminumPlain1/4-20 x 1 1/4alum hex c/sr b18.2.1239
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THRDFASTALHex Head Cap ScrewAluminumPlain1/2-13 x 2alum hex c/s b18.2.1126
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THRDFASTALHex Head Cap ScrewAluminumPlain1/2-13 x 2 1/4alum hex c/s b18.2.132
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THRDFASTALHex Head Cap ScrewAluminumPlain5/8-11 x 1 3/4alum hex c/s b18.2.113
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KBSTNHex Head Cap ScrewAluminumPlain3/8-16 x 23/8-16 x 2 alum hex cap/s b18.2.1371
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KBSTNHex Head Cap ScrewAluminumPlain3/8-16 x 1 1/23/8-16 x 1 1/2 alum hex cap/s b18.2.1667
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KBSTNHex Head Cap ScrewAluminumPlain1/2-13 x 1 1/21/2-13 x 1 1/2 alum hex cap/s b18.2.1204
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KBSTNHex Head Cap ScrewAluminumPlain1/2-13 x 11/2-13 x 1 alum hex cap/s b18.2.1400
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THRDFASTALHex Head Cap ScrewAluminumPlain5/8-11 x 2alum hex c/s b18.2.137
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THRDFASTOKHex Head Cap ScrewAluminumPlain5/8-11 x 2alum hex c/s b18.2.143
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THRDFASTALHex Head Cap ScrewAluminumPlain1/4-20 x 1alum hex c/s b18.2.130
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THRDFASTALHex Head Cap ScrewAluminumPlain5/16-18 x 1/2alum hex c/s b18.2.121
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THRDFASTALHex Head Cap ScrewAluminumPlain3/4-10 x 3 1/4alum hex c/s b18.2.18
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