9/16-18 x 4 1/2 Hex Cap Screw SS 18-8 (A2)

7/8-9 x 1 3/4 Hex Cap Screw SS 18-8 (A2)

5/16-24 x 1 3/4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (100)

5/8-11 x 4 1/4 Hex Cap Screw SS 18-8 (A2)

5/8-18 x 2 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25) 7/16-14 Grade 5 Hex Cap Screws Plain - Domestic USA 9/16-18 x 4 1/2 Hex5 8 18 x 2 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