hardware for storeroom

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To convert the Von Duprin 9975NL(Night Latch or Storeroom) to 9975L (Classroom) exit function follow these steps (Note: the mortise lock is shipped as Night Latch from the factory): Turn the NL ...
To convert the Von Duprin 9975L to 9975NL exit function follow these steps (Note: the mortise lock is shipped as Night Latch from the factory): Turn the NL screw on 7500 mortise lock counter clo...
To convert a Schlage mortise L9080 function to a L9070 function purchase and replace the following:   L283-133, L9070 lock case  L283-040, spring cage (for outside lever)
ANSI F84 Classroom Lock  Outside lever locked and unlocked by key. Inside lever always unlocked for immediate egress.   ANSI F86 Storeroom Lock  Outside lever fixed. Entra...
The storeroom lock function is described as follows: Latch bolt operated by key from outside or by operating inside lever. Outside lever is always inoperative. The following are storeroom functi...
MA581 is a Storeroom function mortise lock.
MA581 operation: Latchbolt operated by key from outside or by operating inside knob/lever. Outside knob/lever is always inoperative. Auxiliary latch deadlocks latchbolt when door is locked.
You must have the Von Duprin NL Cylinder plate part number 967484-89 to convert the 370 series controls from classroom function to night latch function. If new installation, use the NL cylinde...