thicker diameter and additional thread

1 1/4-12 x 8 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (15)

1-8 x 6 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (40)

2-4 1/2 x 5 1/2 Socket Cap Screw Alloy

5/8-11 x 8 1/2 Socket Cap Screw Alloy

5/16-24 x 2 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (600) 3/8-16 Grade 8 Hex Cap Screws Plain - Domestic USA thicker diameter and additional thread5 16 24 x 2 1 2 Grade 8 Hex Cap Screw Plain Domestic USA (600). 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 diameters 1