Our Loop door knocker is forged from solid brass and features a stylish design with many matching products available. 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: 63mm Ring Length: 160mm Fixing Plate: 95mm x 39mm Projection: 33mm Stud: 40 Dia