Zamac Hammer-Screw Nail AnchorProduct Description : The Zamac Hammer-Screw is a unique, one-step nail drive anchor featuring a Phillips typehead 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 resistantZamac alloy and a zinc plated carbon steel or Perma-SealTM coated drive screw, this anchor hasbeen developed as an improvement over standard nailin anchors.The Zamac Hammer-Screw has been designed to provide a removable anchor with highertension load capacities compared with traditional nailin when installed in concrete.The anchor is not recommended for overhead, life-sfety or sustained tensile loadingapplications unless special considerations are given to the allowable loads.(see performance data section). General Applications and Uses :