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Anti-snap euro cylinder: what the stars actually mean

Updated: October 2026

On a street-facing euro door, look for a TS007 three-star total, or Sold Secure SS312 Diamond, fitted so the outside stands proud by no more than 3 mm. A bullet that only says anti-snap is not that mark. Prices are on the [lock cylinder comparison](/hub/door-and-window-security/lock-cylinder). Fitting is on [how to change a euro cylinder](/hub/door-and-window-security/lock-cylinder/sub/lock-cylinder-how-to-fit), and who to buy is on the [best lock cylinder](/hub/door-and-window-security/lock-cylinder/sub/lock-cylinder-best) page. Peter F. used these listings in October 2026. A qualifying purchase can earn a commission at no extra cost to you.

On a street-facing euro door, look for a TS007 three-star total, or Sold Secure SS312 Diamond, fitted so the outside stands proud by no more than 3 mm. A bullet that only says anti-snap is not that mark.

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What the stars are counting

Cylinder snapping is the attack West Yorkshire Police describe on euro cylinders that stick out of uPVC and composite doors: the barrel is broken and the cam is turned. The defence they point to is a TS007 3-star cylinder, or a Sold Secure SS312 Diamond cylinder, fitted without that projection. A 3-star Kitemarked cylinder is tested to stand on its own. A 1-star cylinder is tested to work with a 2-star handle. Sold Secure calls Diamond equivalent to a TS007 3-star cylinder, and the certificates stay separate. If you are leaving an ordinary handle, the police preference is the 3-star cylinder on its own.

What these listings actually print

Only two listings in this set state those marks. The top pick, the greenteQ Orion, is a nickel 35/35 thumbturn at about £32.06 with 4.7 from 833 reviews. A bullet says the TS007 Kitemark offers 3-star intruder resistance. The file has no certificate number, so the bullet is not a checked certificate. The Federal Gabriel, a chrome 35T/35 thumbturn at about £37.99 with 4.4 from 36 reviews, states TS007:2024 and Sold Secure Diamond. FD30 and FD60 are printed, and this comparison did not see a fire certificate. DIDA’s 40/40 at about £12.99 says anti-snap and cites BS EN 1303:2005, with no classification code. The best value, XFORT’s 50/50, says anti-pick, anti-bump and anti-drill. It does not say TS007. The buying guide separates that name from the split you still measure.

Insurance and new homes

The Master Locksmiths Association text is a guideline for locksmiths. It does not oblige an insurer to give cover. Your policy might name TS007, Sold Secure, BS 3621, or a doorset standard, or it might say nothing useful. A listing that says it satisfies insurance policies, or that it is police approved, has not read your schedule. Approved Document Q applies to new dwellings in England. It does not force every existing house to replace a cylinder, and it does not require a thumbturn on every new front door. PAS 24 tests a doorset. A cylinder sold on its own, even one that states 3-star, does not turn an older composite door into a PAS 24 doorset.

The fit still has to be flush

A stated 3-star cylinder that stands proud has failed the fitting rule published next to the star advice. West Yorkshire Police door advice, and the Master Locksmiths Association guideline, both say the outside must not stick out more than 3 mm. Standfast Security’s 5 mm note is a measuring tip for a cylinder that already projects. It is not the limit to fit to. greenteQ and Federal, the only stated higher marks here, are thumbturns around 35 mm. A 50/50 door does not become secure because you wanted their bullet.

Common questions

What is cylinder snapping, without the method?
It is a way of breaking a euro cylinder that projects from the door, then turning what is left so the lock opens. Police advice treats projecting barrels on uPVC and composite street doors as the usual target. The published answer is a TS007 3-star cylinder or an SS312 Diamond cylinder, fitted within 3 mm, not a description of the break.
Is a 1-star cylinder plus a 2-star handle enough?
Yes, as a TS007 total. The Door and Hardware Federation describe that pairing as the alternative to a 3-star cylinder on its own. West Yorkshire Police prefer the 3-star cylinder when you are upgrading the barrel. A 1-star cylinder with an ordinary unmarked handle does not add up to three. Both marks need to be on the products.
Does Sold Secure Diamond equal TS007?
Sold Secure’s booklet calls Diamond the standalone grade and describes it as equivalent to TS007 3-star. The certificates are still separate. Diamond does not stamp a Kitemark onto the cylinder, and a TS007 certificate does not award SS312. Gold, like a 1-star cylinder, is the grade that expects a matching handle.
Does Approved Document Q make me replace the cylinder?
No. Approved Document Q is for new dwellings, not a retrospective order for every existing home. It also does not require every new front door to have a thumbturn. A PAS 24 claim belongs to a tested doorset. Swapping a cylinder, even for one that states 3-star, is not that test.
Which listings here actually state the mark?
greenteQ states a TS007 3-star Kitemark. Federal states TS007:2024 and Sold Secure Diamond. DIDA states anti-snap and BS EN 1303:2005 without grades. XFORT states anti-pick, anti-bump and anti-drill only. Valorada and Wavanta state no mark. No file in this set includes a certificate number to check against the bullet.
Is anti-snap on the DIDA or XFORT title the same as TS007?
No. DIDA pairs anti-snap with BS EN 1303:2005 and does not print a classification code or a star count. XFORT does not use the TS007 name at all. Anti-snap, anti-pick and anti-drill are seller descriptions unless the listing also states the Kitemark or Sold Secure grade, and even then you look for the mark on the cylinder you unpack.

Related pages

Sources

Public UK sources for the security rules, plus the amazon.co.uk listings in this set. Last checked 21 October 2026.

  1. West Yorkshire Police, euro-cylinder advice (retrieved 21 October 2026)
  2. West Yorkshire Police, door and window advice (retrieved 21 October 2026)
  3. Door & Hardware Federation, TS 007 (retrieved 21 October 2026)
  4. Master Locksmiths Association, domestic security guidelines, January 2025 (retrieved 21 October 2026)
  5. GOV.UK, Approved Document Q (retrieved 21 October 2026)
  6. Sold Secure, domestic security booklet (retrieved 21 October 2026)
  7. Lock and Key, how to measure a euro cylinder (retrieved 21 October 2026)
  8. DASH, locks on doors in HMOs, 2023 (retrieved 21 October 2026)