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

9/16-12 x 2 1/4 Hex Cap Screw SS 316 (A4)

3/8-16 x 1 1/4 Grade 8 Hex Cap Screw Plain Domestic USA (800)

1/2-20 L9 Hex Collar Locknuts Cadmium Yellow & Wax Coated Domestic USA (50)

1/2-20 x 7/8 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (50)

5/16-24 x 3/4 Grade 5 Hex Cap Screw Plain Domestic USA (1650) Phillips Flat Concrete Screws 5/8-11 x 4 1/4 Hex5 16 24 x 3 4 Grade 5 Hex Cap Screw Plain Domestic USA (1650). 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