9/16-12 x 4 Grade 8 Hex Cap Screw Plain Domestic USA (25)

9/16-18 x 5 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25)

5/16-18 x 3/4 Grade 8 Hex Cap Screw Plain Domestic USA (100)

1-8 x 11 Socket Cap Screw Alloy

Conform to ASTM F879

1/4-20 x 3/8 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (3300) A563 Grade A Hex Coupling Nuts Zinc Plated 9/16-12 x 4 Grade 81 4 20 x 3 8 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (3300) . 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