1/4-28 x 3 3/4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (50)

000 psi for Hot-Dip Galvanized nuts

Fine thread: 80

1/4 x 5 Simpson Strong-Drive® SDS Heavy-Duty Connector Screw Double-Barrier Coating - Pack (25)

1 1/4-7 x 3 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (20) 3/8-24 Grade 5 Hex Cap Screws Zinc Plated - Domestic USA 1/4-28 x 3 3/4 Grade1 1 4 7 x 3 1 2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (20) . 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