Suitable for use with a multitude of heavy duty locks, latches, and thumbturns for various purposes. 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. The strength of the spring used in our heavy-duty lock/latches will ensure the knob returns to its original position. Knob Size: 54mm Dia. Projection 70mm Rose Size: 58mm Spindle Size: 8mm (Threaded)