1/4-20 x 3 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (750)

5/8-11 x 4 Flat Socket Cap Screw Alloy

thicker diameter and additional thread

000 psi for Hot-Dip Galvanized material

1 Hex Key Long Arm Alloy

5/16-24 x 2 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (600) 3/8-16 Grade 8 Hex Cap Screws Plain - Domestic USA 1/4-20 x 3 Grade 85 16 24 x 2 1 2 Grade 8 Hex Cap Screw Plain Domestic USA (600). 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