These Octagonal mortice/rim knobs are part of our Blacksmith range. Each one is supplied with a loose collar to allow them to be fitted flushed to the door or can alternatively be used in conjunction with a rim lock.Designed to match our Octagonal cupboard 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 Black finish is a popular choice in traditional settings. Its subtle sheen offers a bold contrast on stained and painted timber alike. During the manufacturing process, our Black products are baked in a high-temperature oven, giving them durable, corrosion-resistant qualities.Knob Size: 72mm Projection 76mm Rose Size: 87mm Spindle Size: 8mm (Threaded)