KeyMark key-in-knob cylinders retrofit a broader range of knob and lever sets, deadbolts, and padlocks than any other brand of cylinder on the market, except Medeco Biaxial. This non-UL rated cylinder features a unique security leg to provide patented key control. Solid brass cylinders are suitable for office buildings, schools, hospitals, homes, and apartments where protection against unauthorized duplication of keys is required.

Features & Benefits:

• Solid brass construction for excellent durability
• Spool shaped top and bottom pins add a measure of pick resistance
• Security leg keyway impedes movement of lock picking tools
• Solid nickel silver bottom pins increase wear resistance
• Broad retrofit provides for single key convenience without replacing expensive hardware
• Cylinders available for most Grade 1 and Grade 2 cylindrical locksets and deadbolts