5/16-24 x 2 Grade 8 Hex Cap Screw Plain Domestic USA (800)

1/2-13 x 4 1/2 Hex Cap Screw SS 316 (A4)

5/8-11 x 7 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (25)

1/2-20 x 3 1/2 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (25)

1/2-13 x 3 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25) Phillips Bugle Fine Drywall Screws Black Phosphate 5/16-24 x 2 Grade 81 2 13 x 3 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