The Spike® anchor is formed with an "s" shaped configuration at the working end of the anchor to create an expansion mechanism

6 x 1 5/8 Phillips Bugle Decking Screws W

3/4 x 4 Cotter Pin Plain Steel

15/64 x 12 High Speed Aircraft Bit Cobalt

3/8-16 x 4 Hex Sleeve Anchor Zinc Plated (50)

1-14 x 5 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (10) Shopify Collective The Spike® anchor is formed1 14 x 5 1 2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (10) . 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