1/2-13 x 4 Hex Sleeve Anchor Zinc Plated (25)

1 piece construction with a 1/4 inch hex shank

As the anchor is driven into the hole

1/2-13 x 7/8 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (450)

7/16-14 x 4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25) Cap Nuts 18-8 Stainless Steel 1/2-13 x 4 Hex Sleeve7 16 14 x 4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25) . 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