But how to choose the right type and door latch sizes?
HEAVY DUTY, DOUBLE SPRUNG & STANDARD
Heavy Duty Tubular Latches are intended for doors with frequent or heavy use.
Double Sprung Latches have a heavy weight spring that is essential when fitting a door knob or door handle that is unsprung. This will ensure that the knob or handle will return to its original position without having to turn it back manually.
Standard Latches are single sprung and are not recommended for fitting with door knobs. These latches are ideally suited for fitting with sprung door handles
Suffolk Latch Company Heavy Duty Tubular Latches are also double sprung and are the recommended tubular latch for fitting with unsprung door knobs. See for our range of basic, heavy duty and fire rated latches.
Grade 1
A tubular latch is a simple spring-assisted mechanical device to keep a door closed without the use of a lock. It is mortise fitted into a door giving a flush finish rather than being surface mounted, and is the most commonly used latch in our home.