jenix hidden 12V DC bolt lock Deadbolt Drop Bolt NC Mode Door Lock for Security Access Control door lock - JXhidden-bolt-lock K205 HBLK202

K205 Hidden Bolt Lock is a compact 12V DC fail-safe electric deadbolt lock designed for concealed installation in wooden door frames and office access-control applications. Installation is simple and can be completed using a standard round drill bit without special tools.

The lock remains locked while power is available and automatically unlocks when power is cut, making it suitable for fail-safe access-control systems. A built-in retry function attempts to lock several times if the door is not properly closed, then shuts off to help prevent solenoid overheating. Made with a strong aluminum alloy body and solid stainless-steel bolt for long service life.