Avocet ABS high security euro cylinders in chrome and brass
Chrome euro cylinder lock showing internal (A) and external (B) measurement points from each end to the center of the fixing screw. The lock is labeled 'EXT' on the external side, with a black central cam. Measurement arrows highlight how to determine the correct cylinder size
Diagram of a secure door lock cylinder showing break-off front, Snap Secure Technology, and total barrier features for enhanced door security.
Three keys on a keyring next to a security card, with text '3 Keys Per Cylinder'.
Avocet ABS high security euro cylinders in chrome and brass
Chrome euro cylinder lock showing internal (A) and external (B) measurement points from each end to the center of the fixing screw. The lock is labeled 'EXT' on the external side, with a black central cam. Measurement arrows highlight how to determine the correct cylinder size
Diagram of a secure door lock cylinder showing break-off front, Snap Secure Technology, and total barrier features for enhanced door security.
Three keys on a keyring next to a security card, with text '3 Keys Per Cylinder'.
Avocet ABS

Avocet ABS High Security Euro Cylinder - Anti Snap Lock - TS007 3 Star – Anti Snap – uPVC & Composite DoorsAvocet ABS Euro Cylinder - Anti Snap Lock - TS007 3 Star

4.98 (49 reviews)
£59.99 £44.99 Sale SKU: HS2345

Will this fit your door? See the measuring guide ↓

Colour: Chrome
Size (INT) - (EXT)
£59.99 £44.99
Colour: Chrome
Size (INT) - (EXT)
Order by 2pm for same-day dispatch
Do you want the same key to open your other doors?
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Same-day dispatch on orders before 2pm

Fully tracked 2 working-day courier

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CERTIFIED & POLICE PREFERRED

Black logo with a heart and arrow design on a white background

TS007 3 Star

British Standard

Logo of Solid Secure Diamond with a keyhole design and blue and orange colors.

SS312 Diamond

Sold Secure

Logo of Secured by Design with a blue and yellow color scheme.

Secured by Design

Police Preferred

Logo of BSI with a heart design in the center on a white background

British Kitemark

BSI Approved
Key benefits
  • TS007 3-star Kitemarked anti-snap - British-tested high security
  • Snap Secure technology - cam locks if forced door stays secure
  • Direct retrofit + 3 keys - swap your old cylinder, no door work
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

Which lock is right for your door?

All four fit standard uPVC and composite doors. Swipe to compare →

Compare locks
Our recommendation Avocet ABS 4.98 (49) Rated 4.98 out of 5 from 49 reviews £44.99Trusted and fitted by us for over 10 yearsYou're viewing this
Apecs AP1 review£54.99Top ratings from a newer brandView
Yale Platinum 4.63 (76) Rated 4.63 out of 5 from 76 reviews From £29.99A household name at a great priceView
Standard V5No reviews yet£9.99Budget or internal doorsView
Anti-snap ratingTS007 — what insurers ask for★★★ 3-star★★★ 3-star★★★ 3-starNot rated
Sold SecureIndependent attack testDiamondDiamondNot listed by YaleNot rated
If it's snappedHidden cam locks — door stays shutFront snaps off, cam stays lockedFront snaps off at a set pointNot tested
Key copiesOnly by approved dealers, with your key cardCut to codeKey code on ID cardAny key cutter
One key for all doors✓ YesNot availableNot availableNot available
Guarantee5 yrs + £2,000 snap cover10 yrs + £2,500 break-in cover10 yrs + £3,000 snap coverNone stated

Ratings and guarantees as published by each manufacturer. Snap and break-in cover must be registered with the manufacturer. Reviews are from Home Secure customers.

Product overview

The Avocet ABS is a TS007 3 star, British Kitemarked anti-snap euro cylinder. It is a retrofit product: you take out your old cylinder and fit the ABS in its place, with no changes to the door.

  • 3 keys come with every cylinder as standard
  • Snap Secure Technology: after snapping, the cam locks against the internal locked side of the cylinder, so it can't be operated by hand
  • Anti-snap, anti-drill and anti-pick
  • TS007 3 star rating, with the insurance-recommended British Kitemark™ stamp
  • Master Locksmith Association's Sold Secure Diamond standard

Sizes and finishes

  • Type: euro double cylinder (key both sides). For a thumb turn inside, see the Avocet ABS thumb turn cylinder.
  • Finishes: Chrome or Brass
  • Sizes: 30mm to 60mm on each side, in 5mm steps (choose the size above)

Please note: 30mm cylinders do not display a kitemark due to reduced numbers of key combinations. 30mm cylinders still snap off at the sacrificial point in front of the cam, so an intruder can't get into the lock case.

How to measure

Measurements on this lock are taken to the centre screw. Measure from the centre of the fixing screw hole to the inside end (A) and to the outside end (B). A 40/50 cylinder is 40mm inside and 50mm outside. See our euro cylinder measuring guide for photos of each step.

Want all your locks on the same key?

Choose Avocet ABS keyed alike and we'll supply multiple cylinders that all work from one key. Already have ABS keys? Choose built to code so the new cylinder works with your existing key, or order extra ABS keys cut to code.

See the full Avocet ABS range, or read what TS007 3 star means.
Delivery & Returns

How much is delivery?

UK Mainland Delivery is £2.99 on all items no matter how many you order!

Northern Ireland, Scottish Highlands, Channel Islands £6.00.

We do not offer International Delivery (Ireland, France, Spain etc).

When will my order be dispatched?

Orders before 2pm (Monday to Friday) are usually dispatched same day but may take up to 24 hours.

When will I receive my item?

We ship on 2 working day courier. Fully Tracked. Tracking will be emailed on dispatch.

Special order items such as keyed alike locks will take longer to dispatch. Please refer to product description for lead times.

I haven't received my item?

Please email us your name, order number and date of purchase.

We prefer email as it allows us time to research and respond.

Returns Information

We operate a 30 day refunds and return policy.

If you change your mind you must return the product back to us within 30 days of delivery

Please include a copy of your invoice and a note stating reason for return.

Additional keys, locks keyed alike or built to code are non refundable as they are personalised made to order goods.

Any refund, which is due to a fault or other defect, will include a refund of the applicable delivery charges otherwise not.

It is the buyers responsibility to arrange the return of goods to us. We do not offer a collection service for returning items.

Items must be returned including original product packaging and accessories.

We reserve the right to refuse any returns that do not comply with this policy.

Please post returns to the following address:

Home Secure (Online)

Unit 5, Brookfield Drive

Liverpool, L9 7AJ

United Kingdom

Frequently Asked Questions

TS007 is the British standard for anti-snap euro cylinders. A 3-star cylinder gives the full rating on its own. A 1-star cylinder needs 2-star security handles to reach 3 stars. The Avocet ABS is Kitemarked to TS007 3 star and also meets the Sold Secure Diamond standard.

If someone snaps the front off the cylinder, the cam locks against the inside part of the lock, so it can't be turned by hand and the door stays locked.

30mm to 60mm on each side, in 5mm steps, in chrome or brass. Cylinders with a 30mm side don't show a Kitemark, because of the smaller number of key combinations, but they still snap at the sacrificial point in front of the cam.

It's the cylinder we've recommended at our trade counter for over 10 years. It can also be keyed alike, so one key opens all your doors, which Yale Platinum can't do. See the comparison table on this page, or build a keyed alike set.

Undo the fixing screw in the edge of the door and take the old cylinder out. Measure from the centre of the screw hole to the inside end (A) and to the outside end (B). A 40/50 cylinder is 40mm inside and 50mm outside. Sizes must match exactly: a 40/50 is not the same as a 50/40. Our euro cylinder measuring guide has photos of each step.