252 x 3SSFG Stainless Steel Thermal Barrier Threshold - 5" W x 1/2" H Mortise Exit Devices outside trim remains locked

outside trim remains locked

the bolt automatically retracts to unlock inactive door

STC 28 rating

ANSI F86 Storeroom Function: Deadlocking latch bolt retracted by key in outside trim

252 x 3SSFG Stainless Steel Thermal Barrier Threshold - 5" W x 1/2" H Mortise Exit Devices outside trim remains lockedPemko 252 x 3SSFG Stainless Steel Thermal Barrier Threshold with Frost Guard (5") Thermal barrier thresholds are designed to eliminate the transfer of hot and cold temperatures from one side of the threshold to the other. Enhancing thermal performance, a black rigid polypropylene key between these extrusions acts as a thermal break (FG Frost Guard), minimizing the transfer of hot and cold temperatures. 252X3SSFG: SS Stainless Steel (#4, Brushed