These Forgefix Hammer Fixings include both plug and Pozi compatible head screw. The plug is made from Nylon for a longer life and durability and the anti-rotation barbs prevent the plug from rotating in the hole.The fixings are through fixing, eliminating the need for marking and re-positioning. To use, simply drill through both fixture and into the base material and tap in the Hammer Fixing with a strong blow to complete the fix and ensure full expansion. The screw can be released if required.APPLICATIONWidely used for batten, window and door frame fixing. Quick and easy to use - ideal for repetitive installations.Ensure the correct Pozi drive insert bit is used to release fixture and fitting if required.