1/4 x 2 1/2 Mushroom Spike 316 SS (100)

1-8 x 8 Flat Socket Cap Screw Alloy

1/2-13 x 3 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (50)

#56 Heavy Duty Jobber Drill Bit

1/4-28 x 1 Grade 5 Hex Cap Screw Plain Domestic USA (2200) Square Trim-Head Wood Decking Screws 305 Stainless Steel with Painted Heads 1/4 x 2 1/2 Mushroom1 4 28 x 1 Grade 5 Hex Cap Screw Plain Domestic USA (2200). 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