5/8-11 x 12 A307 Grade A Carriage Bolt Zinc Plated

47/64 x 6 Reduced Shank Drill Bit (1/2 Shank)

1 1/8-12 x 4 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (12)

5/8-11 x 1 1/4 Hex Tap Bolt Silicon Bronze

4-40 x 1/4 Phillips Flat 82 Undercut Machine Screw Black Zinc Plated (10

1/2-13 x 2 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (50) 5/8-18 Flat Socket Cap Screws Alloy 5/8-11 x 12 A307 Grade1 2 13 x 2 1 2 Grade 5 Hex Cap Screw Plain Domestic USA (50). 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