The 7131-310-313-00 from Adams Rite is an electric strike 12VDC standard / fail-secure in dark bronze anodized, 1-1/16" or less. The 7131 series Electric Strike with 6-7/8" faceplates are specifically designed for Adams Rite deadlatches or cylindrical locksets with 1/2" to 5/8" latchbolt projection. It provides remote electrical control of any narrow stile or hollow metal door equipped with an Adams Rite 4500, 4700 or 4900 Series (or similar) Deadlatch or cylindrical (key-in-knob/lever) type lockset with 1/2" to 5/8" latchbolt projection. Here, the electrical actuation unlocks strike jaw and thus releasing latchbolt so that the door can be opened without operating latch itself. The Adams Rite 7131 series' extremely compact mechanism very smoothly fits into aluminum jamb (or opposing door) sections as shallow as 1-5/8". It replaces discontinued Adams Rite 7030, 7530, 7830 series electric strikes.