A classic 'flower' design in a traditional unlacquered brass finish. The unlaquered brass achieves a timeless elegance, highly polished on all surface areas but aged to highlight the detail and design. These knobs will tarnish in time as part of the ageing process but can be polished time and time again if you want to achieve a more contemporary finish. Our knobs come unsprung, are hollow and can be used with a mortice lock or latch - For more information see our guide to locks & latches here. They have 8mm threaded spindle to take adjustment for various door thickness and lock firmly with a grub screw. The grub screw should locate on the 'V' in the shaft and not on the threaded part. For best results the center of the knob should be a minimum of 3'' from the edge of the door. Heavy Duty latches of 4'' or 5'' are recommended for maximum efficiency. Supplied with necessary fixing screws. Finished in Aged Brass - for more information see the finishes guide here.