galvanized coating on the bolts tremendously boosts the unit’s corrosion resistance

Hex Lag Screws are manufactured from low carbon steel to meet SAE J429 Grade 1

1/4-28 x 3/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (2700)

5/8-11 x 7 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (55)

7/8-9 x 2 3/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (60) 1/2-13 Grade 5 Hex Cap Screws Plain - Domestic USA galvanized coating on the bolts7 8 9 x 2 3 4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (60) . 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