1/2-13 x 2 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (225)

7/16-20 x 1 1/4 Grade 5 Hex Cap Screw Plain Domestic USA (550)

18% chromium and 8% nickel for good corrosion resistance

9/16 x 18 High Speed Long Boy (1/2" Shank)

5/16-24 x 5 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (250) L9 Hex Collar Locknuts - Domestic USA 1/2-13 x 2 1/2 Grade5 16 24 x 5 1 2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (250) . 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