https://www.thekeylab.co.uk/van-security/ Locks For Doors and Flaps This deadlock with a keyless hook enhances security and strength of the lock for sliding storefront aluminum doors. Its compact design makes it simple to install and the manufacturer provides an unbeatable mechanical guarantee for the life of the product. You'll need to determine the'stile ' of your door before you can install a hook-bolt lock. This is the distance from the edge of the door to the beginning of any glass, panels or embedded decoration. Hook-type latches that have the hook and bracket Locks for flaps and doors must be sturdy enough to ward off unauthorized access. They must be easy to use and secure using a padlock. Numerous manufacturers offer various types of locks, which are suitable for various applications. For instance tubular locks are designed for sliding doors and manhole covers. They utilize the pre-friction lock principle, a simple yet efficient locking mechanism that stops the latch from moving when it is closed. These locks are only suitable for certain doors or flaps because they require a certain thickness. For this reason, hook-type latches can be a viable alternative to tubular locks. They are more suitable for thin doors and can be set up without the need to remove the frame or door. A basic latch is made up of an opening and a bolt, both attached to the keeper. When the bolt is slid in the keeper it activates and holds the bolt with one end pointing towards the door and the other to the keeper. Some latches come with a knob that can be turned to extend the bolt, but others require a key to unlock the keeper. A spring-loaded latch can also be used. It is secured by a keeper, and can be extended by one simple swipe of the finger. These latches are less costly and more difficult to break than other door locks are commonly used on interior doors. Magnetic latches are a different option. A magnet is employed to attract the strike plate to the door jamb or frame. However,