Dorex TL80 B C32D Medium-Duty Storeroom Knob – Stainless SteelTL80 B C32D Storeroom function suitable for storage rooms, utility rooms, cash offices and secure areas Architectural quality for medium duty commercial applications High quality stainless steel finish For 1 3 8 to 1 3 4 door thickness 2 3 4 backset Optional backsets by special order: 2 3 8, 3 3 4, 5 Non handed field reversible Knob diameter is approximately 2 1 8 3 rosette diameter 1 2 stainless steel latch throw Concealed mounting screws Schlage C 6