1/2-13 x 16 A307 Grade A Carriage Bolt HDG

2 1/2 F436 Flat Washer HDG

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

3/4-10 x 4 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (80)

7/16-20 x 5 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25) Phillips Bugle Hi-Low Drywall Screws Black Phosphate 1/2-13 x 16 A307 Grade7 16 20 x 5 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 of