1021 Simplex Mechanical Pushbutton Entry Knob Lock with Key Override Cylinders Cores & Keys and safety circuits

and safety circuits

Number of Codes: Multiple Users — 100 Codes

and industrial door applications where durability

Schlage ND40S TLR Grade-1 Cylindrical Lever Lock

1021 Simplex Mechanical Pushbutton Entry Knob Lock with Key Override Cylinders Cores & Keys and safety circuitsSimplex 1021_ Mechanical Pushbutton Cylindrical Knob Lock, Combination Entry Function with Key Override, 2 3 4 Backset, 1 2 Throw, Interchangeable Core Prep Simplex Mechanical Pushbutton Locks eliminate problems and costs associated with issuing, controlling, and collecting keys and cards. The Simplex 1000 Series provides exterior access by combination, while allowing free egress. This mechanical lock, with knob option, eliminates the material and