DC12V Fail Safe NC Electric Drop Bolt Lock Access Control Electronic Door Mortise Locks with Time Delay for Gate Entry System
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1.NI-630 has all-metal body with timer and self-locking.
2.Simple to install, just need eight screws.
3.Special hexagonal screw , more safety and stability.
4.Suitable for narrow door (Such as Wooden & Aluminum & Glass & Fireproof & Metal door )