Made of heat-treated carbon steel and available in both zinc plated and mechanically galvanized finishes

Meets ASTM A510 for carbon steel manufacturing

1/4-28 x 6 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (50)

7/16-14 x 6 Hex Cap Screw SS 316 (A4)

5/8-11 x 3 Grade 8 Hex Cap Screw Plain Domestic USA (25) 3/8 Cotter Pins 18-8 Stainless Steel Made of heat-treated carbon steel5 8 11 x 3 Grade 8 Hex Cap Screw Plain Domestic USA (25). 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 diameters 1 4 to 2