Deadlocking nightlatches are designed to withstand efforts to gain illegal access to a property using known methods such as a credit card. Their ability to lock independently the instant a door is closed makes them the ideal choice for securing a large range of inward- and outward-opening doors. Once the deadlocking nighlatches have locked, it requires a key to be used to regain entry. The large variety of options available ensure that every door installation is covered, including those with glass panels or frosted glass.
Among the leading brands of deadlocking nightlatches stocked by easylocks is the high-security Ingersoll SC71, which is supplied with a solid box staple with reinforcing peg. Particularly suitable for doors with glass panels is the Yale No. 1 and No. 2 Rim Auto Deadlocking Nightlatch that relies on a 6-pin brass cylinder to provide high security. A lever handle allows deadlocking from the inside, while a key will still grant access from the outside. Numerous other leading manufacturers offer high levels of security with reliable deadlocking nightlatches.