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Satin chrome mortise lockset with ornamental knob, left-hand, panic-proof dormitory function

Marks USA

Marks USA 22F/26D-W-LH door lock

SKU CH-FWZ9-5F6W4 MPN 22F/26D-W-LH

Satin-chrome mortise lockset with F-function panic-proof exit for left-hand doors

  • FinishSatin Chrome
  • Selling UnitBox
  • TypeMortise Lockset
  • FeaturesF Function Turn Piece
  • Backset2-1/2"
  • KeyingKeyed Different
  • Panic-proof dormitory function allows one-touch exit without thumb turn
  • Left-hand satin chrome finish suits 1-3/8" to 1-3/4" doors
  • Mortise lockset with 1" deadbolt and 2-1/2" backset
  • Keyed-different cylinder secures outside access while inside knob retracts bolt
  • Ornamental iron knob and rose combine durability with commercial-grade styling

Mortise dormitory lockset

The Marks USA 22F/26D-W-LH is a left-hand mortise lockset built for dormitory and exit-door use. Its F Function allows the inside knob to retract the latch and deadbolt in one motion while shifting the rocker to prevent re-entry without a key.

Satin chrome finish and mechanical operation

The US26D satin chrome surface resists wear in high-traffic corridors. With no electronic components, the lock draws no power and produces no fan noise; operation is purely mechanical and silent during normal use.

Fits standard commercial doors

The lock fits doors 1-3/8" to 1-3/4" thick with a 2-1/2" backset and a 1" deadbolt. The 1" x 7-1/8" front face plate aligns with standard mortise preparations. Keyed-different cylinders are supplied, so each unit operates independently. Not suited for right-hand doors or applications requiring electrified access control.

Highlights

  • Panic-proof dormitory function allows one-touch exit without thumb turn
  • Left-hand satin chrome finish suits 1-3/8" to 1-3/4" doors
  • Mortise lockset with 1" deadbolt and 2-1/2" backset
  • Keyed-different cylinder secures outside access while inside knob retracts bolt
  • Ornamental iron knob and rose combine durability with commercial-grade styling

Specifications

BrandMarks USA
Model22F/26D-W-LH
FinishSatin Chrome
Selling UnitBox
TypeMortise Lockset
FeaturesF Function Turn Piece
Backset2-1/2"
KeyingKeyed Different
FunctionDormitory, F Function

Questions about this item

How is the mortise lock body fitted into a 1-3/4 inch thick door?

Mortise a pocket matching the 1 x 7-1/8 inch face plate, set the 2-1/2 inch backset from the edge, then secure the lock body with the supplied screws; the step often missed is aligning the spindle so the inside knob retracts the latch and shifts the rocker in one motion.

Which parts will need lubrication or replacement after extended use?

The cylinder pins, latch bolt, deadbolt and rocker mechanism should be lightly lubricated annually; the cylinder can be re-keyed or swapped without removing the mortise case if key control changes.

What stops the deadbolt from fully extending when the door swells in humid weather?

A swollen door can bind the 1 inch deadbolt against the strike, preventing the rocker from engaging and leaving the lock in passage mode until the door is planed or the strike is adjusted.

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