5/8-18 x 3 3/4 Grade 5 Hex Cap Screw Plain Domestic USA (25)

7/16-14 x 1 3/4 Grade 5 Hex Cap Screw Plain Domestic USA (50)

5/16-24 x 3 3/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (400)

5/8-11 x 4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (90)

7/8-14 x 5 Grade 5 Hex Cap Screw Plain Domestic USA (35)

1-14 x 1 3/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (10) 1-8 Grade 8 Hex Cap Screws Yellow Zinc Plated - Domestic USA 5/8-18 x 3 3/4 Grade1 14 x 1 3 4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (10) . 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