5/16-18 x 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (1950)

5/8-11 x 8 Grade 8 Hex Cap Screw Yellow Zinc Plated

3/4-10 x 7 A307A Hex Bolt Hot Dipped Galvanized

Typical hardness on diameters 1/4 to 2 1/2 inches is HRC 33-39

1-14 x 2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (50)

7/16-14 x 1 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (50) 1/2-13 Socket Cap Screws 18-8 Stainless Steel 5/16-18 x 1/2 Grade 57 16 14 x 1 1 2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (50) . 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