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Polished brass mortise entry lockset with wide face plate and left-hand knob assembly

Marks USA

Marks USA 114A/3-X Polished Brass Left Hand Mortise Entry Door Lock

SKU CH-KE5X-P41NX MPN 114A/3-X

Mortise entrance lockset with a 1-1/4" x 8" wide face plate, through-bolted screwless knobs and a solid brass cylinder with two keys

  • Backset distance2-1/2 in
  • Lock keyingKeyed Different
  • Main functionEntrance
  • Surface finishPolished Brass
  • Sold asBox
  • Product typeMortise Entry Thru Bolted Lockset with 1-1/4 in x 8 in Wide
  • Polished brass finish resists corrosion and matches traditional décor
  • Through-bolted knob plates prevent loosening under heavy use
  • Self-adjusting spindles with screwless knobs simplify installation and alignment
  • Solid brass cylinder includes two keys for secure entry
  • 2-1/2" backset fits standard mortise door preparations

Marks Metro Mortise Entry Lock

The Marks Metro 114A/3-X is a mortise entry lockset finished in polished brass and configured for left-hand doors. It is intended for residential or commercial entrances that require a keyed exterior and thumb-turn interior operation.

Capacity and headroom

The lockset uses a 2-1/2 inch backset and a 1 inch deadbolt throw, fitting standard mortise preparations with a 1-1/4 by 8 inch face plate. It is not suited for doors prepped for cylindrical locksets or for right-hand swing applications.

Build quality and connectors

Solid brass plates and a solid brass cylinder provide durable construction, while through-bolted knob assemblies and self-adjusting screwless knobs simplify installation and resist loosening over time. Two keys are included for the keyed-different cylinder.

How it compares

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

Price $115.99
Pricier than about 69% of the 2,145 comparable items (median $55.99).

Specifications

Product
Brand nameMarks
Product lineMetro
Model name114A/3-X
Product typeMortise Entry Thru Bolted Lockset with 1-1/4 in x 8 in Wide Face Plate
Design styleKnobs
Size & build
Surface finishPolished Brass
Main materialBrass
Backset distance2-1/2 in
More details
Lock keyingKeyed Different
Main functionEntrance

Questions about this item

Will the 2-1/2" backset and 1-1/4" x 8" face plate match the mortise pocket cut for my existing door hardware?

This lockset uses a 2-1/2" backset and a 1-1/4" x 8" wide face plate. Measure your current mortise pocket depth and face plate dimensions to confirm they align with these specifications before installation.

How do I verify the left-hand orientation and thumb turn operate correctly after fitting the lock?

Install the lock on the door. From the exterior, the hinges should be on the left. Operate the outside knob with a key and the inside thumb turn; the 1" deadbolt should extend and retract smoothly in both directions without binding.

Does the box include the solid brass cylinder and two keys, or must they be ordered separately?

The lockset ships with the solid brass cylinder installed and includes two keys in the box. No separate cylinder or key purchase is required for standard keyed-different operation.

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