Our Brompton range is forged from mild steel, solid brass, bronze or Marine Stainless Steel, which emphasises the high quality materials and manufacturing techniques used. A perfect design choice for external doors with matching products available. The Brompton suite is our most contemporary design to date, and features a textured knurled pattern. The industrial styling of the diamond effect creates a modern range of products that can be used throughout your property. Designed to match the rest of our Brompton collection to create a uniform feeling throughout your property. Our centre door knobs also include a location pin on the rose to stop any unwanted movement during the life of your product. Supplied with M8 x 110mm Marine Stainless Steel threaded bolt for bolt-through fixing. Additional Information: Finish: Antique Brass, Aged Bronze, Black, Matt Black, Pewter, Polished Brass,Polished Bronze, Polished Chrome, Polished Marine, Polished Nickel, Satin Brass or Satin Marine. The Antique Brass finish is unlacquered and will darken over time. Knob Size: 90mm Projection: 68mm Rose Size: 90mm x 10mm Supplied with matching fixings