deadbolt insulation instruction

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Insulated Core Options: Steelcraft L-Series doors are available with the following 2 optional insulated cores: Polystyrene slab - this core is available in non fire rated and fire rated doors...
Polystyrene Cores: The L-series door with polystyrene core insulation and the CE-series door have full slab polystyrene core.Polyurethane Cores: The L-series door with polyurethane core has honeyco...
Incorrect timing of the lock can cause the outside lever to retract the latch when raised up.  See instructions here (Step 16 and 17) to time a T351, T381, T561, and T571.  Also applies to the same...
To verify the timing on a T561, function test the outside lever after locking it.  To lock the key should only rotate 180 degrees (Not 360 degrees as Schlage does) A properly timed lock will n...
You can reference the 7500 mortise lock rehanding instructions. Remove the two screws from mortise lock faceplate. Remove the face plate and the collar from the mortise lock then rotate the la...