Item Type:Door Security LockMaterial: AlloyGross Weight: 500g/17.6ozProduct Size: 25x40mm/0.98x1.6Distance Between Upper and Lower Holes: 13mm/0.51Distance Between Left and Right Holes: 29mm/1.1inCover Nut Size: Height: 12mm/0.47in, large diameter: 16mm/0.63in,small diameter: 9mm/0.35in .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; } 1Installation: In general, the door security lock is installed at the rear of the window. This position is ideal because intruders will not look for locks in that position. 2Practical: Door security latch you have any window or doors with security risks in your home, this lock is the ideal choice for fixing window or doors. 3With 2 Keys: The delivery of this door latch lock kit includes 2 keys that is very considerate that you can have a spare key in case you need it. 4Premium Alloy: The window bolt lock is made of premium alloy material so that it is strong, durable and has long service life. 5Wide Use: The security latch has paint surface that has good appearance that is suitable for doors, window, cabinets, etc.