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Satin brass mechanical pushbutton door lock with flat strike plate

Simplex

Simplex 919-1-04 Satin Brass Mechanical Pushbutton Door Lock

SKU CH-QP6J-PK96V MPN 919-1-04

Keyless mechanical pushbutton lock with satin brass finish, 5/8" deadlocking latch and flat strike for doors 1-3/4" to 2-1/8" thick

  • FinishSatin Brass
  • Selling UnitBox
  • KeyingKeyed Different
  • Keyless entry removes the need for keys with a mechanical pushbutton combination
  • Satin brass finish resists corrosion and suits traditional or modern door styles
  • Heavy-duty cast housing and force-resistant thumbturn withstand daily use and abuse
  • Deadlocking 5/8" spring latch automatically relocks each time the door closes
  • Fits 1-3/4" to 2-1/8" thick doors with adjustable 2-1/2" or 2-9/16" backset

Mechanical Pushbutton Lock

The Simplex 919-1-04 is a keyless mechanical pushbutton combination lock finished in satin brass. It suits commercial or residential doors where battery-free operation and a single shared access code are preferred. The lock fits doors ranging from 1-3/4" to 2-1/8" thick and includes a flat strike for standard frame preparation.

Sustained Operation

Because the mechanism is entirely mechanical, performance does not degrade with use and there are no batteries to monitor or replace. The deadlocking spring latch automatically relocks each time the door closes, maintaining security during continuous traffic. A force-resistant cast front housing and clutch-protected thumbturn withstand repeated daily cycles without electronic failure points.

Upgrade From Keyed Entry

This unit replaces traditional keyed cylinders where key management has become impractical or where power supply for electronic locks is unavailable. The jump is worth it when a single programmable code simplifies access for multiple users and when eliminating battery maintenance reduces long-term cost. It is not suited for installations requiring audit trails, multiple unique codes or remote access control.

Highlights

  • Keyless entry removes the need for keys with a mechanical pushbutton combination
  • Satin brass finish resists corrosion and suits traditional or modern door styles
  • Heavy-duty cast housing and force-resistant thumbturn withstand daily use and abuse
  • Deadlocking 5/8" spring latch automatically relocks each time the door closes
  • Fits 1-3/4" to 2-1/8" thick doors with adjustable 2-1/2" or 2-9/16" backset

Specifications

BrandSimplex
Model919-1-04
FinishSatin Brass
Selling UnitBox
KeyingKeyed Different

Questions about this item

Does the mechanical pushbutton mechanism generate any heat or noise during continuous daily use?

The lock is purely mechanical with no motor or electronics, so it produces no heat and only the audible click of the latch bolt engaging when the door closes.

What door preparation must already exist for this 919-1-04 lock to install correctly?

The door must be 1-3/4" to 2-1/8" thick with either a 2-1/2" backset for inswing or 2-9/16" backset for outswing, plus a standard cylindrical bore and edge bore for the 5/8" deadlocking spring latch.

Will the flat strike supplied with this lock align with my existing metal door frame prep?

The included flat strike is designed for standard frame preparations; if your frame already has a flat strike cutout the new strike will match, otherwise the frame will need to be mortised for the flat strike plate.

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