1/2-13 x 1 3/4 A325 Type 1 Heavy Hex Bolt Plain (350)

Proof load strength will meet a minimum of 100

1/4-20 x 6 Grade 5 Hex Cap Screw Plain Domestic USA (350)

55/64 x 6 Reduced Shank Drill Bit (1/2 Shank)

3/4-16 x 5 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (20) 1/2-20 Grade 8 Hex Cap Screws Yellow Zinc Plated 1/2-13 x 1 3/4 A3253 4 16 x 5 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