An image showing a Thumb Turn Avocet ABS High Security Euro Cylinder in silver and gold colors, with a visual representation of the internal (A) and external (B) parts of the cylinder.
Home Secure lock cylinder with anti-snap technology, highlighting break-off front, snap secure mechanism, and total barrier for enhanced door security.
Three security keys with a key card labeled "Security Locked In... Intruders Locked Out," indicating 3 keys per cylinder.
Guide showing how to measure a door for a euro cylinder lock, with an example size of 45/45 mm for internal and external sides.
Euro cylinder measuring guide showing how to measure side A and side B from the central fixing screw to determine the correct cylinder size for your door
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An image showing a Thumb Turn Avocet ABS High Security Euro Cylinder in silver and gold colors, with a visual representation of the internal (A) and external (B) parts of the cylinder.Home Secure lock cylinder with anti-snap technology, highlighting break-off front, snap secure mechanism, and total barrier for enhanced door security.Three security keys with a key card labeled "Security Locked In... Intruders Locked Out," indicating 3 keys per cylinder.Guide showing how to measure a door for a euro cylinder lock, with an example size of 45/45 mm for internal and external sides.Euro cylinder measuring guide showing how to measure side A and side B from the central fixing screw to determine the correct cylinder size for your door

Avocet ABS High Security Thumb Turn Euro Cylinder – Anti Snap TS007 3 Star – uPVC & Composite Doors

Save £10.00
Avocet ABSSKU: HS2346
Will this fit your door? See the measuring guide ↓

CERTIFIED & POLICE PREFERRED

TS007 3 Star

British Standard

SS312 Diamond

Sold Secure

Secured by Design

Police Preferred

British Kitemark

BSI Approved

Colour: Chrome
Price:
£54.99 £64.99

Save £10.00 — limited stock at this price

Eye visibility icon in black, representing monitoring, visibility, or visual deterrence, displayed on a transparent background.

Same-day dispatch on orders before 2pm

Key benefits

  • TS007 3-star Kitemarked anti-snap - British-tested high security
  • Quantum thumb turn for fast exit - no key needed from inside
  • Direct retrofit + 3 keys - swap your old cylinder, no door work
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30-day returns
5-year guarantee

Description

It has been proven that a burglar can gain entry to your property in as little as 13 seconds.

To combat this Avocet has created the 3 Star, British Kitemarked, anti-snap ABS euro cylinder.

This is the ABS Quantum Thumbturn. It operates like a traditional thumbturn and does not require 'clicking' into place as the previous version did

ABS is a retrofit product which means you can simply remove your old lock and replace it with ABS

🔑 Want all your locks on the same key?
Choose our Keyed Alike option and we’ll supply multiple cylinders that operate from one single key. View Keyed Alike Options →

  • All cylinder's come with 3 keys as standard
  • Measurements are taken to the centre screw on this lock
  • Snap Secure Technology - Cam locks against the internal locked side of the cylinder making the cylinder impervious to manual attack after snapping
  • ANTI-SNAP, ANTI-DRILL, ANTI-PICK, ANTI-DRILL
  • TS007 3 star rating
  • Insurance recommended British Kitemark™ stamp
  • Master Locksmith Association's Sold Secure Diamond standard

Please Note: 30mm cylinders do not display a kitemark due to reduced numbers of key combinations. 30mm cylinders do still snap off at the sacrificial point in front of the cam , this ensures an intruder cannot gain access into the lock case.
Euro cylinder measuring guide showing how to measure side A and side B from the central fixing screw to determine the correct cylinder size for your door

Not sure which size cylinder you need?

Euro cylinders are measured in two halves, separated by the central fixing screw. Take both measurements from your existing cylinder before ordering, and match them to the size listed above.

A — Internal side
Measure from the centre of the fixing screw to the outer edge of the cylinder on the side that faces inside your home. Common sizes are 30mm, 35mm, 40mm, 45mm, or 50mm.

B — External side
Measure from the centre of the fixing screw to the outer edge of the cylinder on the side that faces outside your home. Common sizes are 30mm, 35mm, 40mm, or 45mm.

Cylinders are typically described as A/B — for example, a 35/45 cylinder has 35mm on the internal side and 45mm on the external side. Get both measurements right and the cylinder will fit your door perfectly.

Still unsure? Send a photo of your existing cylinder to info@homesecureshop.co.uk and we'll match it for you — or call 0151 521 8089 to speak to our team.

Full measuring guide

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Frequently Asked Questions

A thumb-turn euro cylinder has a key-operated lock on the outside and a turn knob on the inside. This allows you to lock or unlock the door internally without using a key, offering convenience and safe emergency exit.

Yes — this high-security cylinder is designed to fit standard euro-profile door mechanisms, making it suitable for replacing most existing cylinders without needing to change the full lock system.

It includes advanced anti-snap, anti-drill, anti-bump, and anti-pick protection. These features ensure strong defence against common break-in methods and significantly enhance door security.

To understand the different types of cylinder locks — including double, thumb-turn, and half cylinders — and how to choose the right one for your door, read our full guide here: https://www.homesecureshop.co.uk/blogs/news/types-of-cylinder-locks

A thumb-turn cylinder allows keyless internal locking, making day-to-day use easier and improving safety in emergencies. It combines convenience inside with high-security key control on the outside.

About the Brand - Avocet ABS

Avocet ABS is one of the UK’s leading names in high-security door hardware, trusted by homeowners, locksmiths, and security professionals for its proven protection against modern burglary techniques. Known for its ABS 3-Star Euro Cylinder, Avocet has built a reputation for developing advanced, police-approved security solutions that combine innovative engineering with long-lasting durability.

Every Avocet ABS product is designed to exceed the highest industry standards, offering anti-snap, anti-pick, and anti-drill protection to keep homes secure. The brand’s commitment to quality and continuous improvement has made it a top choice for upgrading uPVC, composite, and wooden doors with reliable, insurance-approved security.

Choosing Avocet ABS means choosing trusted technology, exceptional build quality, and maximum home protection—making it a standout brand for homeowners who demand the best in door security.

Explore Avocet ABS