The understated Ringed detailing of this mortice/rim knob set offers a stylish design that will suit a variety of settings. The strength of the spring used in our heavy-duty latch will ensure the ring turn returns to its original position. Supplied with matching SS wood screws. Suitable for use with a multitude of heavy duty locks, latches, and thumbturns for various purposes. Knob Size: 54mm Dia Projection: 70mm Rose Size: 56mm Spindle Size: 8mm (Threaded)