UL fire rated listed for stainless steel, brass and bronze. For use on wood or plastic faced fire doors rated up to and including 1-1/2 hours or hollow metal, steel covered, composite type fire doors rated up to and including 3 hours.
Door edges are sized to be mortised into the surface of 1-3/4" thick wood doors. Advise if your door is another thickness.
Cutouts for flush bolts, lock strikes, locks, and hinges