Our Mushroom mortice/rim knob sets have a smooth and versatile exterior suitable for traditional and contemporary settings alike.Our Mushroom knob sets are forged from solid brass and hand finished by our expert craftsmen. A perfect design choice for any home, with many matching products available.Designed to match our Mushroom cabinet knobs to create consistency throughout your home.Suitable for use with a multitude of heavy duty locks, latches, and thumbturns for various purposes .The strength of the spring used in our heavy-duty lock/latches will ensure the knob returns to its original position.We recommend using a 3", 4", or 5" latch/lock.Supplied with matching SS wood screws.Our Polished Chrome products are made from a base of solid brass coated with a durable chrome plating to give an exceedingly high-sheen finish. Favoured for its bright, bold appearance, Polished Chrome is well suited to contemporary designs and offers a smooth, mirror finish when polished. This works best if a cool, clean look is desired.Knob Size: 49mm Dia Projection: 49mm Rose Size: 51mm Spindle Size: 8mm (Threaded)