1/2-13 x 3 Grade 5 Hex Cap Screw Plain Domestic USA (50)

9/16-12 x 2 Grade 5 Hex Cap Screw Plain Domestic USA (25)

50 x 100 Socket Set Screw Cup Point DIN 916 Black Oxide Alloy

7/16-20 L9 Hex Nut Alloy Cadmium Yellow and Wax Coated Domestic USA (50)

8-32 x 1 Phillips Flat 82 Undercut Machine Screw Black Zinc Plated (7

5/8-18 x 3 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25) 1/2-20 Button Socket Cap Screws Alloy 1/2-13 x 3 Grade 55 8 18 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