The Yale Double Cylinder Deadlock (RL-V198 1/4-AB) is a robust security solution designed to provide enhanced protection for both residential and light commercial doors. Suitable for hinged doors and select sliding door applications, it accommodates door thicknesses ranging from 35mm to 55mm, making it a versatile choice for a wide variety of installations.

Engineered for convenience, this deadlock is ideal for retrofitting onto doors with existing rimlocks, allowing for easy upgrades without extensive modifications. Its double cylinder design requires a key for operation from both sides, delivering an added layer of security, particularly for external doors where controlled access is essential.

Featuring a Yale keyway, the lock can be keyed alike with other Yale products, simplifying key management across multiple entry points. Built to Yale’s trusted quality and performance standards, this deadlock ensures durability, reliability, and consistent security for everyday use.