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Hex Cap Screws

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 
HayesCAHex Head Cap ScrewSteelPlain3/8-16 x 2 1/23/8-16 x 2 1/2 hex c/s nylon100
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HayesCAHex Head Cap ScrewSteelPlain3/8-16 x 3/43/8-16 x 3/4 hex c/s nylon189
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HayesCAHex Head Cap ScrewSteelPlain1/2-13 x 3/41/2-13 x 3/4 hex c/s nylon206
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HayesCAHex Head Cap ScrewSilicon BronzePlain1/2-13 x 21/2-13 x 2 hex c/s f/thread sili brnz tin2
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HayesCAHex Head Cap ScrewSilicon BronzePlain5/16-18 x 65/16-18 x 6 hex c/s sili brnz39
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HayesCAHex Head Cap ScrewGrade 2Zinc/Clear5/16-18 x 45/16-18 x 4 hex c/s gr.2 zinc1553
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HayesCAHex Head Cap ScrewSilicon BronzePlain1/2-13 x 2 1/21/2-13 x 2 1/2 hex c/s f/thread sili brnz tin5
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HayesCAHex Head Cap ScrewSilicon BronzePlain5/16-18 x 7/85/16-18 x 7/8 hex c/s sili brnz12
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HayesCAHex Head Cap ScrewSilicon BronzePlain3/8-16 x 1 1/23/8-16 x 1 1/2 hex c/s spec sili brnz 1/4 grip 3/8 head height 9/16 af6
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HayesCAHex Head Cap ScrewSilicon BronzePlain3/8-16 x 1 1/83/8-16 x 1 1/8 hex c/s spec sili brnz 1/4 grip (unthreaded) 3/8 head height 9/16 across the flats (std)4
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HayesCAHex Head Cap ScrewSilicon BronzePlain3/8-16 x 7/83/8-16 x 7/8 hex c/s sili brnz73
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HayesCAHex Head Cap ScrewSilicon BronzePlain5/16-18 x 15/16-18 x 1 hex c/s f/thread sili brnz73
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HayesCAHex Head Cap ScrewSilicon BronzePlain5/16-18 x 2 1/45/16-18 x 2 1/4 hex c/s f/thread sili brnz8
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HayesCAHex Head Cap ScrewSilicon BronzePlain3/8-16 x 5 1/23/8-16 x 5 1/2 hex c/s sili brnz3
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HayesCAHex Head Cap ScrewSilicon BronzePlain3/8-16 x 73/8-16 x 7 hex c/s sili brnz1
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HayesCAHex Head Cap ScrewSilicon BronzePlain3/8-16 x 1/23/8-16 x 1/2 hex c/s sili brnz46
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HayesCAHex Head Cap ScrewSilicon BronzePlain5/8-11 x 3 1/25/8-11 x 3 1/2 hex c/s f/thread sili brnz1
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HayesCAHex Head Cap ScrewSilicon BronzePlain3/4-10 x 33/4-10 x 3 hex c/s sili brnz1
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HayesCAHex Head Cap ScrewSilicon BronzePlain5/16-18 x 2 3/45/16-18 x 2 3/4 hex c/s sili brnz2
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HayesCAHex Head Cap ScrewSilicon BronzePlain3/4-10 x 53/4-10 x 5 hex c/s sili brnz6
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