The zinc plating provides a protective layer that enhances resistance against moisture

The anchor’s flange nylon head provides additional stability when installing into hollow materials

Wall Anchors work in all types of materials

1 1/2-6 Grade 2 Finished Hex Nut Zinc Plated

3 1/4 -4 A194 2H Heavy Hex Nut Plain USS Flat Washers Zinc Plated The zinc plating provides a3 1 4 4 A194 2H Heavy Hex Nut Plain . A194 2H Heavy Hex Nuts are manufactured from 1045 steel to meet or exceed ASTM A194 Grade 2H. Hot Dip Galvanized material will meet or exceed ASTM A153 and or ASTM F2329. Galvanized nuts are over tapped per ASTM A563. Typical hardness is HRC 24 35 for diameters up to 1 1 2 inches, HRB 95 HRC 35 for diameters over 1 1 1 2 inches. Proof load strength is 175,000 psi.