Armature Plate Holder for E-941SA-1200, E-941SA-1K2PD, E-941SA-1K2PQ, E-941DA-1K2Q and E-941DA-1K2P. The E-941S-600/HQ and E-941S-1K2/HQ can be used to mount the armature plates to a metal-core door or provide extra security for the armature plate.