5/8-11 x 12 A307 Grade A Carriage Bolt HDG

7/8-14 x 4 Grade 8 Hex Cap Screw Plain Domestic USA (15)

7/8-9 x 4 1/4 Hex Cap Screw SS 18-8 (A2)

1 1/8-12 x 3 Socket Cap Screw Alloy

1 1/2-6 x 20 A307A Hex Bolt Plain Steel

1 1/4-7 x 8 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (10) 1/2-13 Socket Cap Screws Zinc Plated 5/8-11 x 12 A307 Grade1 1 4 7 x 8 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (10) . 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