Avocet ABS Quantum Thumb Turn Euro Cylinder Door Lock Anti Snap 3 Star Kitemark

Collections: ABS, Door Cylinders



The New ABS Quantum Thumb Turn is a retro-fit cylinder by Avocet, the only retro-fit cylinder which has passed the master locksmith associations highest standard SS312 Sold Secure Diamond Rating and is also a 3 star British kitemarked lock. ABS also holds the secured by design accreditation, the police preferred specification. With its patented anti lock snapping design and its pick, drill and bump resistance, it is the highest accredited lock on the market today. This lock requires no additional security devices such as clamps and cylinder guards to prevent break ins due to the unique way it prevents access to the internal lock mechanism.

The new ABS Quantum thumbturn cylinder is an upgrade on the the original model - the turn does not now need to be depressed to turn resulting in no lockout issues!

Please Note: 30mm sized barrels do not have the kitemark due to reduced size which limits the key combinations to below 30,000. This does NOT impact upon the snap secure technology.


  • TS007 3 star approved
  • British Kitemark - KM586153
  • BS EN1303 2005 Approved
  • Advanced Snap Secure Technology
  • Meets the requirements of Sold Secure Diamond
  • Secured by Design (Police Preferred Specification)
  • Anti-Snap - Sacrificial Section
  • Patented Snap Secure Active Cam Technology
  • 10 Anti-drill pins
  • 6 Trap pins for pick resistance
  • Anti-bump pin system
  • No security door handle required
  • Suitable for UPVC, timber and composite doors
  • Online key registering available

What's in the pack?

1 x ABS Quantum Thumb Turn Cylinder

3 x Keys

1 x Key Card

1 x Fixing Screw

Extra Keys

If you need more than 3 additional keys to go with your cylinder or need extra keys for your existing cylinders then please send us a message with your requirements.

How do i measure an ABS door cylinder?

Please remember that one side of an ABS lock is dedicated external and the other internal; the internal side is the thumb turn side. Avocet ABS locks are clearly marked 'EXT' on the external side for easy fitting.

The easiest way to measure your old euro cylinder lock is to remove it from your door, taking note which end is external.

Measurement A (Internal, the thumb turn side): Measure from the internal side to the centre of the screw hole. A = 40mm

Measurement B (External): Measure from the external side to the centre of the screw hole. B = 50mm

The cylinder size you would need to order in this example case is 40mm Int 50mm Ext