1/4" x 3" Powers Zamac Hammer-Screw Nail Anchors, Mushroom Head with No. 2 Phillips Head Carbon Steel Screw

The Zamac Hammer-Screw is a unique, one-step nail drive anchor featuring a Phillips type head and a screw thread for use in concrete, block, brick or stone. It is available in 1/4 diameter and lengths ranging from 3/4 to 3. With a body formed from corrosion-resistant Zamac alloy and a zinc plated carbon steel or Perma-Seal™ coated drive screw, this anchor has been developed as an improvement over standard nailin anchors. The Zamac Hammer-Screw has been designed to provide a removable anchor with higher tension load capacities compared with traditional nailin when installed in concrete. The anchor is not recommended for overhead, life-safety, or sustained tensile loading applications.