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 CY407TKey-in-knob cylinder. ABLOY PROTEC² lock system. Cylinder CY411TDouble cylinder for tubular deadbolts. ABLOY PROTEC² lock system. Cylinder CY404TRound ANSI cylinder. ABLOY PROTEC² lock system.