The Nylon Hammer Fixing plug NHF is a nylon plug with pre-assembled zinc plated nail screw. The nylon hammer fixing plug expands when the nail is driven in, and holds by friction in the drill hole. Suitable for most types of base materials. Long expansion area, nail screw with reinforced neck and pozidrive head. Fixture can easily be removed. The nylon hammer fixing plug NHF is available with the countersunk head in thick materials and the cylindrical head in thin materials also available with stainless nail for corrosive environments.