1-14 x 3 1/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (40)

9/16-18 x 2 1/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (25)

7/16-14 x 1 3/4 Grade 5 Hex Cap Screw Plain Domestic USA (50)

the expansion mechanism compresses and exerts force against the walls of the hole

1-14 x 8 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (18) 5/8-11 Flat Socket Cap Screws Alloy 1-14 x 3 1/4 Grade1 14 x 8 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (18) . 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