5/16-18 x 4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (50)

5/8-11 x 3 3/4 Grade 8 Hex Cap Screw Plain Domestic USA (25)

9/16-18 x 1 1/4 Socket Cap Screw Alloy

5/8-11 x 10 Grade 8 Hex Cap Screw Yellow Zinc Plated

7/8-9 x 2 Socket Set Screw Cup Point Alloy

3/4-16 x 3 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25) 9/16-18 Socket Cap Screws Alloy 5/16-18 x 4 Grade 53 4 16 x 3 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 of