1/2-13 x 4 1/2 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (25)

permanent and semi-permanent location of parts on shafts with hardness differential of 10-15 Rockwell C points and where cutting in of cup edge on the shaft is acceptable

1/2-20 x 1 1/4 Grade 8 Hex Cap Screw Plain Domestic USA (50)

7/8 L9 SAE Tension Flatwasher Yellow Zinc Plated Domestic USA (660)

3/8-24 x 4 Grade 5 Hex Cap Screw Plain Domestic USA (50)

1/4-20 x 6 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (10) 9/16-18 Hex Cap Screws 18-8 Stainless Steel 1/2-13 x 4 1/2 L91 4 20 x 6 1 2 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