7/8-14 x 1 3/4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (15)

1/4-28 x 3/4 Grade 5 Hex Cap Screw Plain Domestic USA (2700)

1/2-13 x 3 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (25)

5/16-18 x 4 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (300)

1/2-13 x 4 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25)

3/8-16 x 7 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (10) 5/8-18 Grade 8 Hex Cap Screws Plain - Domestic USA 7/8-14 x 1 3/4 Grade3 8 16 x 7 1 2 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