1/2-13 x 2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (250)

1 1/4-7 x 7 Flat Socket Cap Screw Alloy

5/16-18 L9 Hex Nut Alloy Cadmium Yellow and Wax Coated Domestic USA (4000)

3 1/2-4 A563 Grade A Heavy Hex Nut Plain

3/4-10 x 4 3/4 Hex Cap Screw SS 316 (A4)

5/8-11 x 2 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (125) 1-14 Grade 8 Hex Cap Screws Plain - Domestic USA 1/2-13 x 2 Grade 55 8 11 x 2 1 2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (125) . 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