1-8 x 3 1/2 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (10)

1/2-20 x 4 Grade 8 Hex Cap Screw Plain Domestic USA (25)

5/8-11 x 5 1/2 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (100)

It has a four sided square head at one end and a cup-shaped indentation at the other end

9/16-18 x 1 3/4 Socket Cap Screw Alloy

5/8-11 x 3 3/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (25) M5-0.80 Socket Cap Screws 12.9 Alloy Plain DIN 912 1-8 x 3 1/2 L95 8 11 x 3 3 4 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