5/8-18 L9 Hex Collar Locknuts Cadmium Yellow & Wax Coated Domestic USA (25)

5/8-18 x 1 1/2 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (255)

1/2-13 x 4 1/2 Socket Cap Screw 18-8 (A2) Stainless Steel

1-14 x 5 Grade 8 Hex Cap Screw Yellow Zinc Plated

1/2-13 x 3 1/4 Grade 5 Hex Cap Screw Plain Domestic USA (175) 1-8 Flat Socket Cap Screws Alloy 5/8-18 L9 Hex Collar Locknuts1 2 13 x 3 1 4 Grade 5 Hex Cap Screw Plain Domestic USA (175). Grade 5 Hex Cap Screws are manufactured in the USA from medium carbon steel. Our Grade 5 material meets or exceeds SAE J429 Grade 5 specifications. All products are manufactured with rolled threads. Typical hardness on diameters 1 4 to 1 inch is HRC 25 34. On diameters over 1 inch to 1 1 2 hardness will range from HRC 19 30. Tensile strength for diameters 1 4 to 1 inch is a minimum of