5/16-18 x 1 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (1400)

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

1/4-20 x 1 1/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (1900)

9/16-18 x 2 1/4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (200)

7/16-20 x 2 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (50)

7/16-14 x 7/8 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (100) 3/4-10 Grade 5 Hex Cap Screws Zinc Plated 5/16-18 x 1 Grade 57 16 14 x 7 8 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