1/2 Heavy Duty Drill Bit - Stubby Length

3/4-10 Finished Hex Nut Silicon Bronze

1/2 L9 SAE Tension Flatwasher Yellow Zinc Plated Domestic USA (2600)

railroad ties

1/4-28 x 5 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (50)

1/4-20 x 5 Grade 5 Hex Cap Screw Plain Domestic USA (400) STRONG-BOLT 2 Cracked Concrete Wedge Anchors 316 Stainless Steel 1/2 Heavy Duty Drill Bit1 4 20 x 5 Grade 5 Hex Cap Screw Plain Domestic USA (400). 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 120,000