The design features include:

1 1/8-7 x 4 A307A Hex Bolt Zinc Plated

5/8-18 x 7 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated

3/8-16 x 1/2 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (100)

5/16-24 x 1 3/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (850) 1 1/2-12 L9 Hex Cap Screws Yellow Zinc Plated - Domestic USA The design features include:5 16 24 x 1 3 4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (850) . 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