Home / Lock the door / Knob Locks / Knob Lock with Passage Function, Knob Lock with Passage Function, Knob Lock with Passage Function, suitable for Door thickness in the Range 35mm ? 55mm. Suitable for Internal Doors Light Duty Application. Tested for 200000 functions. Knob Lock with Passage Function, quantity Add to BOQ Categories: Knob Locks, Lock the door Tag: SSS Related products Floor Spring EN 3 Add to BOQ FR Floor Spring EN 3 Add to BOQ Fire rated WC lock Add to BOQ Floor Spring EN 4 Add to BOQ