9/16-18 x 5 1/2 Socket Cap Screw Alloy

5/8-11 x 4 1/2 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (25)

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5/8-18 x 2 3/4 Hex Cap Screw SS 316 (A4)

5/16-18 x 9 Socket Cap Screw Alloy

5/16-24 x 6 Grade 5 Hex Cap Screw Plain Domestic USA (250) 1/2 Hex Lag Screws Zinc Plated 9/16-18 x 5 1/2 Socket5 16 24 x 6 Grade 5 Hex Cap Screw Plain Domestic USA (250). 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 of 120,000