57/64 x 6 Reduced Shank Drill Bit Cobalt (1/2 Shank)

7/8-9 x 1 3/4 Grade 8 Hex Cap Screw Plain Domestic USA (80)

1/2-13 x 4 A325 Type 1 Heavy Hex Bolt Plain (175)

3/8-16 x 5/8 Grade 5 Hex Cap Screw Plain Domestic USA (100)

1/2-20 x 1 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (450)

5/16-18 x 2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (100) 1 1/4-12 Socket Cap Screws Alloy 57/64 x 6 Reduced Shank5 16 18 x 2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (100) . Grade 8 Hex Cap Screws are manufactured in the USA from medium carbon alloy steel. In diameters 1 4 to 1 1 2 inches our Grade 8 material meets or exceeds SAE J429 Grade 8 specifications. Diameters over 1 1 2 inches meet or exceed ASTM A354 Grade BD. All material is manufactured with rolled threads. Yellow zinc plated bolting will meet or exceed ASTM F1941. Typical hardness on