The Zamac Nailin is a nail-drive, general purpose anchor that can be used in concrete, block, brick, or stone. Applications include attachment of roof membrane terminations, roof flashing, and mechanical/electrical fixtures. It features a anchor body formed from a corrosion resistant Zamac alloy with a carbon steel drive nail. The mushroom head provides a tamperproof installation. Note: The Zamac Nailin is not recommended for overhead, life-safety or sustained tensile loading applications unless special considerations are given to the allowable loads.