Acme Locks Limited supplies Double Action Brass Latch and Slider Mortice Lock. Acme Locks Limited is the manufacturer of different types of door locks. Double Action Brass Latch and Slider Mortice Lock is available brass / stainless steel front & striking plate. Double Action Brass Latch and Slider Mortice Lock has been provided with 60 mm backset. It is operated by a key from the outside or by rotating the inside knob. The outside knob of this door lock is always fixed.