5/16-24 x 2 3/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (550)

1 1/4-12 x 2 Socket Cap Screw Alloy

Meets ASTM A510 for carbon steel manufacturing

1-14 x 4 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (50)

9/16-12 x 4 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (100)

5/8-18 x 3 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (100) 5/16-24 Grade 8 Hex Cap Screws Yellow Zinc Plated - Domestic USA 5/16-24 x 2 3/4 Grade5 8 18 x 3 1 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