1/2-20 x 5 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (100)

At FMW Fasteners

1/4-28 x 3 3/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (50)

50 x 30 Socket Cap Screw 12

9/16-18 x 2 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (25) Strong-Drive SDWH Timber-Hex Screws Double-Barrier Coated 1/2-20 x 5 1/2 Grade9 16 18 x 2 1 2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (25) . 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