Roller Bolt
Roller bolt nightlatches operate with a simple push / pull action and can been unlocked by using a turn handle on the inside or the key from the outside. For external doors we suggest that a nightlatch be installed in addition to mortice lock and not be relied upon as the main locking method. You may need to purchase a rim cylinder separately as not all nightlatches comes supplied with one.
Please feel free to contact us if you have any questions as we're more than happy to help.