Atlantic Old English Harrogate Solid Brass Mushroom Mortice Knob, Black Nickel – OE58MMKBN

These knobs are unsprung so must be fitted with a heavy duty double sprung tubular latch
Finish: Black Nickel
Dimensions: 58mm Knob Diameter, 70mm projection, 65mm Rose Diameter
Ensure latch chosen provides sufficient back set to distance the knob from the door frame
On fire doors we recommend 4″ Heavy Duty latches with mortice door knobs
Supplied & sold in pairs complete with fixings