Hex nut with opposed slots cut into the top of the nut through the centers of the flats

1/2-20 x 4 Button Socket Cap Screw Alloy

4-40 x 3/8 Phillips Flat 82 Undercut Machine Screw Black Zinc Plated (10

7/8-14 x 2 1/2 Socket Set Screw Cup Point Alloy

1-14 x 3 1/4 Grade 5 Hex Cap Screw Zinc Plated 1 3/8-6 Socket Cap Screws Alloy Hex nut with opposed slots1 14 x 3 1 4 Grade 5 Hex Cap Screw Zinc Plated . Grade 5 Hex Cap Screws are manufactured from medium carbon steel. Our Grade 5 material meets or exceeds SAE J429 Grade 5 specifications. All products are manufactured with rolled threads. Zinc plated material meets or exceeds ASTM F1941. 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