1 3/8-6 x 4 1/2 Socket Cap Screw Alloy

1-14 x 11 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (8)

1/4-20 x 2 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (900)

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1/4-28 x 1 1/2 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (2050)

1/2-20 x 5 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25) 9/16-18 Grade 5 Hex Cap Screws Plain - Domestic USA 1 3/8-6 x 4 1/21 2 20 x 5 1 2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25) . Grade 5 Hex Cap Screws are manufactured in the USA from medium carbon steel. Our Grade 5 material meets or exceeds SAE J429 Grade 5 specifications. All products are manufactured with rolled threads. Typical hardness on diameters 1 4 to 1 inch is HRC 25 34. On diameters over 1 inch to 1 1 2 hardness will range from HRC 19 30. Tensile strength for diameters 1 4 to 1 inch is a minimum