Tubular deadbolt ME154T Used with the CY412 single cylinder with thumbturn and the LC802 tubular deadbolt lock case. Operated from outside the door by a key and inside by the thumbturn. This product has Abloy PROTEC² -lock system. Abloy PROTEC² is a factory level locking solution. Every key is carefully controlled and is only made at Abloy Oy's factory. The keys have a patented sliding element that increases key security. One key fits several locks. How many locks a single key opens and who has access to what, can be accurately controlled. UL listed. Specifications Type of product Mechanical bored lockset Platform ABLOY PROTEC2 Close Cylinder CY411TDouble cylinder for tubular deadbolts. Abloy PROTEC² lock system. Cylinder CY413TCylinder with lockable thumb. for tub. deadbolts. Abloy P… Cylinder CY406TKey-in-knob cylinder. Abloy PROTEC² lock system.