Octagonal Mortice/Rim Knob Sets - Black

Our mortise /rim knobs come unsprung. They are solid cast not hollow and have loose roses to enable them to be used with a rim lock (discard one rose) or with a mortice lock. They have treaded spindles to take the adjustment for varios door thicknesses and lock firmly with a grub screw. Each set comes complete with fixing screws, which are concealed for improved appearance, together with two escutcheons. For best results the centre of the knob should be a minimum of 3'' from the edge of the door. Heavy duty latches and locks are recommended for maximum efficiency - see codes 18299/2.5''or 18238/3''. Please note that all the knobs with this traditional black finish range can be used externally. Sold as a set and supplied with necessary fixing screws. The GRUB SCREW should locate on the ''V'' in the shaft and not on the threaded part.