Prime-Line Products GD 52118 GD52118 Garage Door Lock Handle, 1 SECURITY LOCK  Use this heavy duty galvanized inside deadlock as an additional security lock for nights, vacations and more. WORKS ONLY FROM INSIDE  This type of deadlock engages in a vertical track, and works only from the inside as an additional security lock. EASY INSTALLATION  Installation is quick and easy, and the deadlock fits most garage doors. HEAVY DUTY  Made of heavy-duty galvanized steel, this inside lock comes with a comfortable rubberized grip and provides peace of mind and extra security, plus its durable and made to last. BEWARE OF COUNTERFEITS  This item includes fasteners and features the red rubberized tip, but we can only guarantee that if you order from the listing that shows Ships from and sold by Amazon.com. Package should look identical to image on this page.