9/16-18 x 4 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (25)

8 x 1 5/8 Simpson Bugle-Head Self-Drilling Screw - Square Drive 410 SS - Carton (3000)

1-14 x 1 3/4 Grade 5 Hex Cap Screw Zinc Plated

3/4-16 x 2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (100)

5/16-24 x 7 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (225) 1/2-20 Socket Cap Screws Alloy 9/16-18 x 4 1/2 Grade5 16 24 x 7 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (225) . 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