1-8 x 5 1/2 Hex Cap Screw SS 18-8 (A2)

5/8-11 L9 Hex Collar Locknuts Cadmium Yellow & Wax Coated Domestic USA (25)

5/8-11 x 7 Hex Cap Screw SS 316 (A4)

3/8-16 x 5 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (175)

1 9/32 x 6 Reduced Shank Drill Bit Cobalt (1/2 Shank)

5/16-24 x 1 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (1000) 9/16-18 Grade 5 Hex Cap Screws Plain - Domestic USA 1-8 x 5 1/2 Hex5 16 24 x 1 1 2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (1000) . 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