Ansen Tools AN-133 Diamond Tip Hex Head Concrete Screw Anchor 3/16" x 1 1/4". 100 Piece With Drill Bit;

The Ansen Tools AN 108 Diamond Tip Hex Head Concrete Screw Anchor with its Diamond Tip is designed for the most precise penetration in extra hard materials. The screws are made from high-grade hardened carbon steel with the advanced plating process; Envirocoat, which provides lifetime corrosion resistance. Drill bit included for pilot hole in concrete. Screw anchors are ICC Listed for Quality Control (see report ER-5045). Box comes with 100 screw anchors and carbide tipped drill bit.