Anti-snap locks are high-tech Europe lock cylinders which are developed and tested to prevent lock braking stopping a burglar from effectively breaking the door down into two pieces. This kind of lock is frequently found on uPVC (unplasticized polyvinyl chloride) doors.

European profile lock cylinders are the most popular type on the market. They usually have the same shape but differ in material, size, brand and especially in the type of key and locking mechanism. Lock cylinders offer security features such as anti-picking, anti-drilling, anti-shattering and anti-

The lock cylinder is an important part of the lock, and it is the main part that controls the unlocking of the lock. The lock core and the key can rotate and drive the core of the lock bolt. The main function of the lock cylinder is to twist the square tongue of the mortise lock, starting the inclin

American National Standard Institute (ANSI) ANSI 156.5 ItemANSI 156.5 Latch Bolt Cycle-testGrade 1-500,000Grade 2-300,000Grade 3-200,000 Deadbolt Cycle-testGrade 1-250,000Grade 2-150,000Grade 3-100,000Fire TestPass UL 10 C 3 hours fire testAnti-corrosionSalt Spray Test 200 hours 1. SCOPE 1.1 ANS

1. Category of useOne category is identified. Grade 1: For use by people with a high incentive to exercise care and with a small chance of mis-use. 2. DurabilityThree grades are identified according to the number of test cycles achieved. Grade 4 : 25 000 Cycles Grade 5 : 50 000 Cycles Grade 6 : 100