As one of our most traditional designs, this classic Ring knocker is best suited to cottage doors. Supplied with matching 70mm stainless steel threaded bars and dome headed caps. Fixes to your door using a bolt-through fixing for the knocker and strike plate which is fitted with a dome head cap on the internal side of the door. Ring Width: 100mm Ring Length: 106mm Fixing plate: 47mm dia. Projection: 40mm Stud: 49mm dia.