Cerberus TS007 3-Star Euro Cylinder Door Lock - Black - 50/50 (100mm)

TS007 is a British security standard for door hardware. A 3-star rating signifies that the product meets the highest level of security requirements, specifically designed to resist forced entry methods like lock snapping.

Sold Secure is an independent testing and certification house. Diamond is their highest rating, indicating that the product has passed the most rigorous attack tests, including those simulating professional burglary techniques.

Measure the length of your existing cylinder from the center screw hole to each end. For a 50/50 cylinder like this one, both measurements should be equal (e.g., 50mm + 50mm = 100mm total). Ensure the total length and the orientation of the screw hole match your door's requirements.

This is a standard Euro profile cylinder and is compatible with most uPVC, composite, and aluminum doors that use a Euro cylinder locking mechanism. It is not suitable for traditional timber doors with mortise locks unless they have been adapted for a Euro cylinder.

The matt black finish is designed for durability and a premium look. However, like any finish, it can be susceptible to scratching or wear if subjected to harsh abrasion. Regular cleaning with a soft cloth will help maintain its appearance.

The product details mention a 'Mechanical & Surface Guarantee,' which typically covers manufacturing defects in materials and workmanship. Specific terms and duration should be confirmed with the retailer or manufacturer.

Basic tools are usually sufficient, primarily a screwdriver to remove and replace the cylinder retaining screw. You might need pliers or an adjustable wrench if the old cylinder is stubborn.

Ensure the correct cylinder size was installed and the retaining screw is not overtightened. If the issue persists, check for door misalignment or debris in the keyway. A graphite lubricant may be used sparingly.

Verify that you are using the correct key. Check the keyway for any obstructions. Ensure the cylinder is fully seated and aligned correctly with the lock mechanism.

This can indicate an incorrect installation or a failure of the internal mechanism. Double-check the retaining screw and cylinder alignment. If the problem persists, the cylinder may need replacement.

While designed to remain operational, extreme attacks might cause damage. Inspect the cylinder and surrounding door for visible damage. Contact a locksmith or CERBERUS support if the lock is unresponsive.