Amazon.com: Tosuny Electric Drop Bolt Plug Narrow Door Lock, DC12V 2-Wire Normal Temperature Electric Bolt Lock Security Access Control System for Glass Doors : Industrial & Scientific
Electric Drop Bolt Door Lock DC 12V Magnetic Induction Auto Deadbolt for Security Access Control System|Electric Lock| - AliExpress
Amazon.com: Hollywood Racks Locking Threaded Hitch Pin Bolt with Security Cable Lock Black, 1/2-13 TPI : Automotive