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Polished brass mortise lockset with screwless knob and face plate

Marks USA

Marks USA 114DW/3 Polished Brass Mortise Door Lock

SKU CH-98AG-G96RT MPN 114DW/3

A right-hand mortise lockset with screwless brass knobs, 2-1/2" backset and storeroom function that stays locked outside

  • Backset distance2-1/2 in
  • Lock keyingKeyed Different
  • Main functionStoreroom
  • Surface finishPolished Brass
  • Sold asBox
  • Product typeMortise Through Bolted Lock Knob Vestibule Function Always L
  • Polished brass finish resists corrosion on solid brass plates
  • Screwless knobs with self-adjusting spindle simplify installation
  • Through-bolted assemblies strengthen the lock against forced entry
  • Storeroom function keeps outside locked while allowing free egress inside
  • Right-hand mortise design fits standard 2-1/2 inch backset doors

Mortise Lock with Vestibule Function

This polished brass mortise lock delivers a vestibule function that keeps the outside lever permanently locked while the inside lever remains free for egress. The 2-1/2" backset fits standard commercial door preparations and the through-bolted assembly secures both trim plates without exposed screws. Solid brass construction throughout provides durability in high-traffic entrances. Two keys are included for the outside cylinder.

Right-Hand Door Application Only

The lock is handed for right-hand doors so it suits openings where the hinge is on the right when viewed from the secure side. Buildings that require left-hand or reversible hardware cannot use this unit without modification. Buyers needing a deadbolt or a thumb-turn on the interior should select a different function because this model is latch-only.

2-1/2" Backset Determines Fit

The 2-1/2" backset is the critical dimension that decides whether the lock aligns with existing door prep. Measure from the door edge to the centre of the cross bore before ordering; a mismatch means the lock will not install correctly. No other specification overrides this requirement.

How it compares

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

Price $85.99
Pricier than about 61% of the 2,145 comparable items (median $55.99).

Specifications

Product
Brand nameMarks
Product lineMetro
Model name114DW/3
Product typeMortise Through Bolted Lock Knob Vestibule Function Always Locked Storeroom Latch Only Lockset
Design styleKnobs
Size & build
Surface finishPolished Brass
Main materialBrass
Backset distance2-1/2 in
More details
Lock keyingKeyed Different
Main functionStoreroom

Questions about this item

What does the 2-1/2 inch backset mean when the lock is installed in a door?

The 2-1/2 inch backset measures from the door edge to the centre of the knob spindle, so the mortise pocket must be cut at that distance for the lock to align correctly.

How does the mortise interface limit the door thickness or preparation?

The lock fits a standard mortise pocket with a 1-1/16 by 7-5/8 inch face plate; door thickness must match the through-bolt spacing supplied with the lock body.

What physical mounting does the through-bolted, screwless design require?

The trim plates bolt through the door from both sides, and the knobs secure with a self-adjusting spindle — no exposed screws are needed on the knob roses.

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