LFIC key switch lock, B2, compatible to Schlage (no core)

Installed these switches in a KONE elevator panel that previously had a Best small format key switch that was obviously incompatible with a Schlage Large Format Interchangeable Core system. I had to use 3 spacer rings to reduce the depth of the switch intrusion into the panel due to interior clearance issues as the switch mechanism is long. I used blue locktite on the small screws to prevent loosening up over time. Switches are of good quality, worked perfectly, and looks great!