Our Loop door knockers are forged from solid brass or mild steel and features a stylish design with many matching products available. They fix 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. Supplied with matching 70mm Marine Stainless Steel threaded bars and dome headed caps. Our extensive selection of door knockers are designed to suit a variety of doors including timber, composite, uPVC, and aluminium, offering both traditional and contemporary designs. Additional Information: Ring Width: 63mm Ring Length: 160mm Fixing Plate: 95mm x 39mm Projection: 33mm Stud: 40mm Diameter Finish: Antique Brass, Antique Pewter, Black, Polished Brass or Polished Chrome The Antique Brass finish is unlacquered and will darken over time