Concealed fixed plates have studs with internal threads located on the 55mm rose, visible roses have corresponding countersunk holes and are fixed back to back through the door.
Application
Designed for use with Lockwood 3770 Selector & 3570 Synergy Series Mortice Latches and with 5250 Tubular Latches.
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Materials Aluminium, stainless steel or brass.
Door Thickness For use with 3570 Series Mortice Latches: Door thickness 35 to 45mm
For use with 5260 Tubular Latches: Door thickness 37-45mm
(Extended screws and packing plates available for installation on thicker and thinner doors.)