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
Atlantic Old English Harrogate Solid Brass Mushroom Mortice Knob, Black Nickel – OE58MMKBN
£49.12
.    You save
10 in stock
Buy in bulk and save more..
£49.12
1
piece
£45.19
(8% off)
30 pieces
£44.20
(10% off)
50+ pieces

Zoo Hardware Zps Ball Mortice Knob, Satin Stainless Steel (Sold In Pairs)
Zoo Hardware Zcs2 Contract Euro Profile Escutcheon, Satin Stainless Steel
Zoo Hardware Foxcote Foundries Turn & Release, Black Antique
Zoo Hardware Zcs2 Contract Blank Profile Escutcheon, Satin Stainless Steel
Atlantic Tubular Deadbolt 2.5" - Matt Black
Old English Lincoln Solid Brass Victorian Knob 32mm on Concealed Fix - Antique Copper OEC1232AC
Zoo Hardware Contract Oval Rim Door Knobs, Satin Chrome (Sold In Pairs) 