5/16-18 x 3 1/4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (450)

1/4-20 x 5 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (50)

9/16-12 x 4 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (25)

1/2 Heavy Duty Jobber Drill Bit

5/16-18 x 1 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (100) Flat Split Drive Anchors Zinc Plated - Clearance 5/16-18 x 3 1/4 Grade5 16 18 x 1 1 2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (100) . 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