1-8 x 6 Grade 8 Hex Cap Screw Plain Domestic USA (25)

#10 Diameter

1/2-13 x 4 1/2 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (150)

1/4-28 x 1 1/4 Grade 8 Hex Cap Screw Plain Domestic USA (100)

#42 Heavy Duty Jobber Drill Bit

1/2-13 x 5 1/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (100) 9/16-18 Socket Cap Screws Alloy 1-8 x 6 Grade 81 2 13 x 5 1 4 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 on