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.Our Brompton range is forged from marine ss (316) which emphasises the high quality materials and manufacturing techniques used. A perfect design choice for external doors with matching products available.This concealed knob set features a simple Square rose that brings a contemporary edge to a traditional design.Designed to match the rest of our Brompton door, window & cabinet furniture to create a uniform feeling throughout your home.Can be used with a multitude of heavy duty locks, latches & thumbturns for various uses within the home. We recommend using a 3", 4" or 5" latch/lock.The strength of the spring found in a heavy-duty lock/latch will ensure the knob returns to it's original position.Supplied with matching SS wood screws.Our Polished Marine Stainless Steel is grade 316 and manufactured with high concentrations of chromium and nickel. These products offer great strength and have extremely resilient corrosion resistant properties which make them an excellent choice for coastal locations. This finish is very versatile, with a high sheen appearance that works well with warm tones and cool, contemporary settings alike. For complementary products, we recommend our Polished Chrome finish.Knob Size: 63mm dia. Projection: 60mm Rose Size: 63mm x 63mm x 10mm Spindle Size: 8mm (Threaded)