Octagonal Mortice/Rim Knob Set - Large
Knob Size: 72mm
Projection: 76mm
Rose Size: 87mm
Spindle Size: 8mm (Threaded)
Blacksmith Range Mortice/Rim Knob Sets
All of our blacksmith mortice/rim knob sets are supplied with loose collars to ensure they can be flush fitted to doors or alternatively used in conjunction with a rim lock.
Our mortice/rim knob sets should ideally be used with 3”, 4” or 5” locks and latches to avoid the knob sitting too closely to the door edge and frame, as this often results in difficulties when turning and opening doors.
Please note our mortice knob sets are unsprung and will need to be fitted with ‘heavy duty’ locks and latches. The strength of the spring found in a heavy-duty lock/latch will ensure the knob returns to it’s original position once released.
Black Finish - (For Internal or External Use)
Our black finish is baked in a high-temperature oven giving it a durable corrosion resistant finish. It is resistant to moisture and can be used in bathrooms and damp conditions. This finish has been salt tested to 480 hours, which meets grade 5 British Standard. Wiping with a lightly oiled cloth from time to time will remove harmful deposits and maintain its original condition.