Schlage Everest 29 SL Primus XP

The Everest 29 SL Primus XP is a UL 437-rated slider lock made by Schlage. It uses seven L-pin sliders and five finger pins with two sidebars that require the pins to be raised and rotated properly. The patent protection on the Everest 29 keys will expire in 2029.

Principles of operation

 * See also: Pin-tumbler (Principles of operation)