9/16-18 L9 Hex Collar Locknuts Cadmium Yellow & Wax Coated Domestic USA (800)

Hardness is Rockwell C32 maximum and proof load is 72

1/4 x 1 1/4 Combo Hex Washer Head Wall-Dog™ Light Duty Anchors Zinc Plated - Carton (1000)

High red hardness of cobalt permits speeds 30% greater than standard heavy duty split point (HSS) drills

1/2-13 x 5 1/2 Socket Set Screw Cup Point Alloy

1/2-13 x 5 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (100) M24-3.00 Socket Set Screws Cup Point DIN 916 Black Oxide 9/16-18 L9 Hex Collar Locknuts1 2 13 x 5 1 2 Grade 5 Hex Cap Screw Plain Domestic USA (100). 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