
Why Standard Euro Cylinders & Anti-Snap Locks Are Not the Same Thing
A standard euro cylinder sits flush with or slightly proud of the door face. If a burglar grips the protruding section with pliers or a snap tool and applies rotational force, the cylinder shears at a weak point just inside the cam. Once that front section breaks away, the remaining internal cam can often be turned with a screwdriver in seconds — the lock is effectively defeated without making much noise and without damaging the door frame. This is why lock snapping has largely replaced glass-breaking as the preferred entry method in residential burglaries across London boroughs including Newham.
A TS007 3-star anti-snap cylinder works on an entirely different principle. The British standard TS007 rates cylinders on a star system: 1-star cylinders have basic anti-snap features; combined 3-star ratings — achieved either by one cylinder rated 3-star on its own or by pairing a 1-star cylinder with a 2-star door handle — indicate resistance to snapping, picking, drilling, and bumping. When a 3-star cylinder is subjected to the snapping attack, an engineered sacrificial break point at the front shears cleanly, but the rear portion of the cylinder containing the cam remains locked. The door stays shut. That is a fundamental difference in real-world security, not a marginal improvement.



