The versatile Retro Fit Door Knob has a very simple and discreet design which makes this a perfect option for any minimalistic or industrial cabinetry. Perfect for a new extension on an older home or light, minimal spaces, the Retro Fit Door Knob blends various design influences to suit classic and modern homes. This knob is the in trend must have! With the variance of colours offered by Tradco, these are not to be missed. Knobs are sheet brass (with threaded spindle) and backplates are forged brass. The knob is hollow and matching connector bolts are supplied. Available in 1 size and 6 finishes. Dimensions Diameter 54mm. Backplate 60mm. Projection 59mm. Need Help?