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Satin chrome cylindrical knob lock with pushbutton keypad and unified trim plate

Simplex

Simplex 1021S-26D Satin Chrome Mechanical Knob Pushbutton Combination Door Lock

SKU CH-G716-W0MZN MPN 1021S-26D

Mechanical pushbutton combination lock with adjustable backset for LFIC Schlage cores, satin chrome finish

  • Backset distance2-3/4 in - 2-3/8 in
  • Lock keyingKeyed Different
  • Surface finishSatin Chrome
  • Sold asBox
  • Keyless entry eliminates key management costs
  • Mechanical operation removes battery replacement expense
  • Adjustable backset fits 60 mm or 70 mm doors
  • Works with LFIC Schlage cores for flexible keying
  • 3-hour UL/ULC fire rating on A-label doors

Mechanical keyless entry for commercial doors

The Simplex 1021S-26D is a heavy-duty mechanical knob lock that grants exterior access by pushbutton combination while allowing free egress from inside. It fits wood or metal doors from 35 to 57 millimetres thick and accepts LFIC Schlage cores sold separately. The satin chrome finish resists wear in high-traffic environments. No wiring or batteries are required for operation.

Sustained operation without power concerns

Because the lock is fully mechanical, it avoids the material and labour costs of battery replacements during continuous daily use. A single access code is programmed at the keypad without removing the lock from the door. The cylindrical latch carries a three-hour UL/ULC fire rating on A-label doors. The unified trim plate and cast front housing maintain alignment through repeated cycles.

Adjustable backset simplifies retrofit installs

The backset adjusts between 60 and 70 millimetres to match common door preparations, and the latch length is 13 millimetres. Installers must supply a compatible LFIC Schlage core, as the lock ships without one. Fixed ADA-compliant knobs meet accessibility requirements. The keyed-different cylinder option prevents accidental cross-keying across multiple doors.

How it compares

Measured against everything we stock in Door Lock Sets & Deadbolts, at today’s prices. Recalculated every night.

Price $681.99
Pricier than about 92% of the 2,145 comparable items (median $55.99).

Specifications

Product
Brand nameSimplex
Model name1021S-26D
Size & build
Surface finishSatin Chrome
Backset distance2-3/4 in - 2-3/8 in
More details
Lock keyingKeyed Different

Questions about this item

Does the mechanical pushbutton lock use any batteries or external power to operate?

No, it is a fully mechanical lock with no batteries or wiring required, so there is no ongoing power consumption or heat to consider.

What separate core must I already own for this lock to function?

You need a Large Format Interchangeable Core (LFIC) in the Schlage format; the lock body is sold without a core.

Will the adjustable 2-3/4" to 2-3/8" backset and 13 mm latch match the cut-out on my existing 35 mm to 57 mm thick door?

Yes, the lock fits doors 35 mm to 57 mm thick and the backset adjusts between 60 mm and 70 mm with a 13 mm latch, covering most standard door preparations.

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