Bathroom Mortice Sashlock - G8020This bathroom mortice sashlock can be operated by a lever handle from either side and the deadbolt is operated by a turn from either side off a 5mm spindle. Made in the UK by Guardian Locks, this lock is available in various sizes and in many finishes. Typically used on bathroom doors, where you can lock from the inside and then gain emergency release from the outside if required. SIZES AS FOLLOWS: Lockcase Backset Centres 63mm 45mm 57mm 76mm 57mm