Adams Rite 7100 series clear anodized zinc-aluminum alloy electric strikes for aluminum jambs or stiles. Case measures 1-inches by 3-3/8-inches by 1-5/8-inches deep. Strike opening measures 5/8-inches by 1-7/16-inches by 1/2-inches deep. Bolt retainer jaw is made of stainless steel. Strike accepts bolt of any Adams Rite 4500/4700/4900 series dead latch or cylindrical latches. Strike lip: basic 7100 strike has lip of proper length for 1-3/4-inches thick door that closes flush with jamb edge. Faceplate measures 1-1/4-inches by 4-7/8-inches. It has flat faceplate. Fail secure: field convertible from one mode to the other. However, AC intermittent solenoid must not be used continuously in either. Function: remote electrical control of any door equipped with an Adams Rite series 4500/4700/4900 (or similar) dead latch or "key-in-knob" sets. Electrical actuation unlocks strike jaw, releasing latch bolt so door can be opened without operating latch itself. Extremely compact mechanism fits into aluminum jamb (or opposing door) sections as shallow as 1-5/8-inches. ANSI/BHMA type E09321 (Grade 1). UL listed for burglary resistance. 12 volts DC voltage.