FAQ - about our triple door lock set
An automatic deadbolt automatically locks the door with a solid deadbolt every time the door closes. The lock mechanism has a connected trigger and bolt action: when the trigger makes contact with the strike plate in the door frame, the lock throws the deadbolt to secure the door automatically.
An automatic deadbolt is more secure as a thief cannot slip it as they could latch, and you can’t forget to lock it as you would a manual deadbolt. Therefore, you never make your home an easy target for an opportunist thief.
Firstly, the Finfort automatic deadbolt throws an 11mm thick by 21mm long solid hardened steel deadbolt on door closure.
Secondly, it is morticed into the door which is much more secure than a side mounted lock.
Finally, it has a unique patented feature: when a Finfort automatic deadbolt is unlocked, the deadbolt retracts and is held by an ‘internal holdback’ which temporarily keeps the deadbolt in an unlocked position while the key is removed to open any other locks on the door.
This means that it is possible to fit two automatic deadbolts on the same door that can be opened in any order with one key using one hand. This superior functionality is unique to Finfort Locks and was awarded prizes by both the Master Locksmith Association in 2019 and the Society for British & International Design in 2021.
No! This is one of the unique and patented features of the Finfort automatic deadbolt. The innovative configuration of levers and springs in the lockcase mean that each deadbolt can be opened and will stay open in the door frame while other locks are opened. Therefore locks can be opened in any order with one hand with the same key.
Use this text to answer questions in as much detail as possible for your customers.
Yes, Finfort automatic deadbolts are particularly well suited to outward opening doors. A latch lock on an outward opening door can be easily opened. A Finfort automatic deadbolt greatly reduces this vulnerability as a solid bolt cannot be easily manipulated, even when the bolt is visible. On an outward opening door, because our locks include a deadbolt tumbler feature so that the deadbolt cannot be forced backwards when in the locked position, even under a very substantial backwards force.
Strength, Simplicity & Style Combined

Ultimate High Security
Two 21mm deadbolts automatically secure the top and bottom of your door every time — ideal for urban homes or anyone needing added peace of mind. YOU LEAVE, IT LOCKS!

Keyed Alike Registered Keys
All Finfort locks come with registered keys and exclusive key card. Our door lock sets are keyed alike as standard. We can key other locks to the same key also. e.g. front and back doors.

Matching Door Furniture
Our six finishes are expertly crafted to colour match the Heritage Brass door furniture range, ensuring a cohesive and sophisticated look that enhances both your exterior and interior design.
Installed in beautiful British Homes
Our customers choose the Triple Lock Set for its unmatched security and classic style — here’s how it looks on real doors.

Polished Chrome
Crafted by K&D Joinery, this accoya door features satin nova glazing and a music note knocker, finished in Sikkens Satin Green.

Polished Brass
Victorian-style six-panel door painted in Farrow & Ball Middleton Pink, featuring a dragonfly knocker.

Satin Chrome
Sleek, contemporary black door with minimalist styling and satin chrome finish.
what our customers say
Outstanding quality, security & performance
We install FINFORT and can’t speak highly enough about them. Possibly the best auto locking deadlocks on the market – both in aesthetics and security. 10/10
Spendid Products
Hilary was great, helped me customise my chosen lock set's (Auto Deadbolts) which look fantastic on both the outside and inner sides of the door. The locks work great exactly as stated on the website. Yes I would recommend their locks.
These locks are simply amazing!!
As far as I am aware nothing compares to FinFort. They are very well made and very strong, as a lock should be. I fitted two auto bolts to my door had them keyed the same and worry no more. Door is simply bolted every time I close it. No bulky unsightly nightlatch on the inside just a neat lock guard and thumb turn. Externally too, looks great and a deterrent to burglars as it’s visible that they are high security locks.
Definitely worth the investment and peace of mind!!