ABS Ultimate Series Anti-Snap Cylinder

A door cylinder is the small brass or chrome barrel that the key goes into, and it is the part of a lock that burglars most often attack. West Yorkshire Police advise households with euro-cylinder locks to check they meet the latest standards, TS007 (3 star rating) or SS312 (Sold Secure Diamond Standard)¹. The ABS Ultimate Series is a euro cylinder the maker rates TS007 3 Star out of the box, with no need for cylinder guards or security handles².

For a household, that matters in two ways. In ordinary times it is the difference between a door that resists a snap attack and one that does not. In an emergency, when you may need to leave quickly or let a responder in, it is the difference between a lock that still works smoothly and one that has seized or corroded. The ABS Ultimate Series is built for both: it is anti-snap, pick, drill and bump resistant, and it is endurance tested to 100,000 operations².

This page sets out what the cylinder does, the sizes and formats it comes in, how the versions differ, how to keep several doors on one key, and how to look after it so it stays ready. It is written for a household that wants a door it can rely on, not for a locksmith.

Rated TS007 3 Star out of the box, with no extra guard needed

The headline for this cylinder is its rating. The maker states that the ABS Ultimate Series is TS007 3 Star rated out of the box, and that this means there is no need for cylinder guards or security handles². That is a practical point for a household: a 3 star cylinder is a complete answer to the snap attack on its own, rather than one part of a two-part system that needs a separate guard to reach the same standard.

The police advice is the reason to care. West Yorkshire Police ask whether you have euro-cylinder locks on your doors, and if so, whether they meet the very latest standards, TS007 (3 star rating) or SS312 (Sold Secure Diamond Standard)¹. A 3 star cylinder is the top of the TS007 scale, and it is the rating the police name first.

The maker also sets out the wider engineering behind the rating. ABS describes an advanced magnetic anti-bump and double pin within pin system which effectively stops lock bumping keys from opening the lock, and 16 anti-drill pins located before and after the snap line for maximum defence⁴. The cylinder itself is listed with 8 + 1 magnetic pins². Those are the features that sit behind the star rating, and they are why the cylinder resists picking, drilling and bumping as well as snapping.

For a household, the rating is also a check you can make yourself. The maker states that all sizes from 35 to 60mm internal and external key/key and thumbturn are 3 star Kitemark stamped on the front of the cylinder². If you are buying a replacement or checking a door you have just moved into, the stamp on the face of the cylinder is the visible proof of the rating. The one exception is the smallest size, covered below.

Active Snap Protection: what happens if someone tries to snap the lock

Lock snapping is the attack the rating is built around, so it is worth understanding what the cylinder actually does when someone tries it. The maker describes unique patented Active Snap Protection: the system detects an attack and locks the cylinder after a snap attack to keep intruders locked out². In other words, the cylinder does not simply break and leave the door openable. It reacts.

The maker's guidance on the ABS ATK+ explains the mechanism in more detail. The cylinder is designed to break away at a specific point, which immediately triggers the Active Snap Protection technology and fires an internal locking mechanism blocking access to the door bolt³. The half cylinder and keyed alike pair pages describe the same idea as Snap Secure Technology, where the Active Cam system locks the cylinder after a snap attack to keep intruders out⁵.

The practical effect for a household is that a failed attack leaves you with a damaged cylinder but a door that is still secure. That is a different outcome from a standard cylinder, where a snap can expose the mechanism and let someone open the door. It also means that if you come home to a cylinder that has been attacked, the door may still be locked, and you should treat the damage as a security issue rather than assume the house has been entered.

The maker's wider range uses the same principle. Avocet describes the ABS diamond grade cylinder as a locking system that knows when it has been snap attacked and fires into action⁴. The point for a household is that the protection is built into the cylinder itself, so it works whether or not you have added anything else to the door.

Sizes from 30 to 60mm and the formats available

A cylinder has to fit the door, and the maker lists the ABS Ultimate Series in sizes from 30 to 60mm in 5mm increments for both internal and external parts of the cylinder². That range covers the common door thicknesses, and the 5mm steps mean you can match an existing cylinder rather than compromise.

The formats are the other half of the choice. The maker lists the range as available in keyed alike, thumbturn, singles and double profile formats². In plain terms:

• Key/key: a key on both sides of the door. The standard choice for a front door.
• Key/turn (thumbturn): a key outside and a thumbturn inside. The maker states that ABS Quantum thumbturn locks allow easy exit in case of an emergency⁶.
• Half cylinder: a shorter barrel for certain door types, described by the maker as an easy retrofit with no additional prep⁵.
• Rim cylinders: the maker lists a screw-in rim cylinder and a nightlatch rim cylinder, both 3 Star Rated⁸.

The thumbturn is the format that matters most in an emergency. A key/turn cylinder lets you get out of the door without finding a key, which is why the maker highlights easy exit. The trade-off is that a thumbturn is only as secure as the door it is fitted to, so it suits a door where the thumbturn cannot be reached from outside through a letterbox or a gap.

The half cylinder has its own size list: 10-30, 10-35, 10-40, 10-45, 10-50, 10-55 and 10-60mm⁵. That is a different measuring convention from the standard cylinder, so measure the existing barrel before ordering rather than assuming the numbers match.

ABS Ultimate Series, the wider ABS range and ABS ATK+: how the versions differ

The ABS name covers more than one product, and the differences matter when you are choosing. The ABS Ultimate Series is the range this page covers. The wider ABS range includes the original ABS cylinder, which the maker describes as a diamond grade cylinder⁴. The ABS ATK+ is a separate high-security cylinder with its own certification list.

The clearest way to see the difference is side by side.

The ABS ATK+ is the version with the longest certification list. The maker states that the ABS High-Security Euro Cylinders (ABS ATK+) meet the rigorous requirements of the British Kitemark, TS007 3*, and Sold Secure Diamond, and Secured by Design³. If your priority is a cylinder that carries every mark the maker lists, that is the one to look at. If your priority is a 3 star cylinder that fits without extra hardware, the Ultimate Series is the direct answer.

The maker also notes that ABS were the original creators of the 3* cylinder, and have been at the pinnacle of high security door cylinders since 2010⁹. That is the maker's own account of its history, and it explains why the range has several generations of product under one name.

Keys, keyed alike sets and suiting several locks to one key

Keys are where a lock choice becomes a household system. The ABS Ultimate Series is supplied with 3 Orange keys per cylinder, and keyed alike sets of locks have 3 keys in total². That is the baseline: one cylinder, three keys.

If you want several doors on one key, the maker offers suiting. Suiting a group of locks means that the maker will manufacture them to operate off the same key². When you suit multiple cylinders, you receive 3 keys per suite group, and if you wish to have more than 3 keys you add them to your order¹⁰. That is worth planning before you order, because the key count is set at the point of manufacture.

There is a limit to be aware of with the off-the-shelf keyed alike pair. The maker states that these ABS locks are keyed alike off the shelf and can't be made to match other existing locks⁷. So if you buy the pair as a quick way to get two doors on one key, you get a new key that will not match the rest of your house. If you need the new lock to match keys you already hold, you need the built-to-code route instead.

That route has its own rule. The maker states that cylinders built to an existing code do not include any keys as standard, and if you wish to order additional keys you add them to your basket². In practice, if you are replacing one cylinder in a set and want to keep your existing keys, order it built to your code and add the keys you need.

The keyed alike pair is sold in pairs as standard, and the maker lists it with 3 keys per cylinder (6 in total)⁷. That is a different key count from a suited group, so check which product you are ordering before you assume how many keys arrive.

Fitting and looking after the cylinder: Lock Lube every six months

Fitting is the easy part, according to the maker. The ABS Ultimate Series is described as no additional prep, easy retrofit². That means it is a direct replacement for an existing euro cylinder rather than a job that needs the door cut or a guard added. The maker's half cylinder page repeats the same point⁵.

Looking after it is where households go wrong. The maker's guidance for the ABS ATK+ is explicit: the cylinder must be maintained at 6-month intervals using ABS Lock Lube, and the use of WD40, 3-in-1 oil or other solvent-based lubricants will void the guarantee³. That is the maker's instruction for its own product, and it applies to the way the cylinder is lubricated.

The reason to take it seriously is the endurance figure. The maker states that the cylinder is endurance tested to 100,000 operations². That is a test figure, not a promise about your door, but it tells you the lock is built for a long service life if it is maintained as the maker says. A cylinder that is stiff because it has been oiled with the wrong product is a cylinder that may fail when you need it most.

A simple maintenance routine for a household:

1. Note the date you fitted the cylinder, and diarise a lubrication check every six months³.
2. Use ABS Lock Lube, not WD40, 3-in-1 oil or any other solvent-based lubricant³.
3. Test the key in the lock after lubricating, and check the thumbturn if you have one.
4. If the key becomes stiff between services, check the door alignment before assuming the cylinder is at fault.

The corrosion rating supports this routine. The maker states that the cylinder meets the requirements of BS EN1670:2007 at Grade Class 3². That is the corrosion resistance grade quoted across the range, and it matters for a door that faces the weather. A cylinder that corrodes can become hard to turn, which is exactly the failure you do not want during an evacuation or a power cut when you are leaving in a hurry.

For the wider picture on door standards and how a cylinder fits into a layered approach, see Doors and Locks: Standards, Cylinders and Making Entry Harder. If you are measuring a replacement, How to Measure a Euro Cylinder walks through the process, and Which Way Round to Fit a 3 Star Anti-Snap Cylinder covers orientation. The maker's own range is described on the ABS page.