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Hex Cap Screws (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.

Hex Head Cap Screw (b18.2.1), showing 200, (click on any line for more information)

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
OBRIENOHHex Head Cap ScrewGrade 8Plain1/4-20 x 1hhcs gr8 sae-j429 ansi b18.2.1300
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OBRIENOHHex Head Cap ScrewGrade 2Plain1 1/8-7x3 1/2 hhcs gr2 asme/ SAE j429 ansi b18.2.121
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THRDFASTOKHex Head Cap ScrewGrade 8Zinc/Yellow1/4nf-28x1/2 gr8 hex c/s z&y b18.2.12,825
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THRDFASTOKHex Head Cap ScrewGrade 2Zinc/Clear1-8 x 2 1/2gr2 hex c/s b18.2.12,550
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THRDFASTOKHex Head Cap ScrewGrade 8Zinc/Yellow1/4-20 x 1 3/4gr8 hex c/s z&y b18.2.11,320
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THRDFASTOKHex Head Cap ScrewGrade 5Zinc/Clear1/4nf-28x1 gr5 hex c/s b18.2.11,275
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THRDFASTOKHex Head Cap ScrewGrade 2Zinc/Clear3/8-16 x 7/8gr2 hex c/s b18.2.11,098
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THRDFASTOKHex Head Cap ScrewGrade 8Zinc/Yellow1/4nf-28x2 gr8 hex c/s z&y b18.2.1805
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THRDFASTOKHex Head Cap ScrewGrade 8Zinc/Yellow5/16nf-24x3/4 gr8 hex c/s z&y b18.2.1800
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THRDFASTOKHex Head Cap ScrewGrade 8Plain1 1/4nf-12x8 1/2 gr8 hex c/s b18.2.1568
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THRDFASTOKHex Head Cap ScrewGrade 8Zinc/Yellow1/4-20 x 2 3/4gr8 hex c/s z&y b18.2.1520
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THRDFASTOKHex Head Cap ScrewGrade 5Zinc/Clear5/16-18 x 2 1/4gr5 hex c/s b18.2.1530
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THRDFASTOKHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 5/818-8 ss hex c/s b18.2.1508
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THRDFASTOKHex Head Cap ScrewGrade 8Zinc/Yellow1/4-20 x 2 1/2gr8 hex c/s z&y b18.2.1500
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THRDFASTOKHex Head Cap ScrewGrade 5Zinc/Clear5/8-11 x 5gr5 hex c/s b18.2.1500
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THRDFASTOKHex Head Cap ScrewGrade 8Zinc/Yellow5/16-18 x 3gr8 hex c/s z&y b18.2.1475
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THRDFASTOKHex Head Cap ScrewGrade 2Zinc/Clear5/16-18 x 1 3/4gr2 hex c/s b18.2.1445
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THRDFASTOKHex Head Cap ScrewGrade 8Zinc/Yellow1/4-20 x 2gr8 hex c/s z&y b18.2.1435
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THRDFASTOKHex Head Cap ScrewGrade 5Zinc/Clear5/16nf-24x2 gr5 hex c/s b18.2.1400
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THRDFASTOKHex Head Cap ScrewGrade 8Zinc/Yellow5/16-18 x 2 3/4gr8 hex c/s z&y b18.2.1400
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THRDFASTOKHex Head Cap ScrewGrade 8Zinc/Yellow7/16-14 x 3/4gr8 hex c/s z&y b18.2.1375
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THRDFASTOKHex Head Cap ScrewGrade 8Zinc/Yellow1/4nf-28x3/4 gr8 hex c/s z&y b18.2.1360
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