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Polished brass mortise lock with screwless knobs, right-hand vestibule function

MAXTECH

MAXTECH Mortise Lock Knob Vestibule Storeroom Right Hand 2-3/4" Brass

SKU CH-NSRX-B89D4

Heavy-duty mortise lockset with vestibule storeroom function, 2-3/4" backset, scissor and anti-friction latch, screwless thru-bolted brass knobs, right-hand operation

  • Security gradeHeavy Duty
  • Location typeCommercial/Institutional/Industrial/Residential
  • Backset distance2-3/4 in
  • Lock keyingKeyed Different
  • Main functionStoreroom
  • Surface finishPolished Brass
  • Heavy-duty security for commercial and institutional doors
  • Vestibule storeroom function keeps the outside always locked
  • Scissor and anti-friction latches ensure smooth, reliable operation
  • Through-bolted, screwless knob plates speed up installation
  • Solid polished brass construction with brass cylinder and two keys

Right-Hand Storeroom Mortise Lock

This MAXTECH mortise lockset provides a storeroom function with a right-hand orientation. The latch-only design uses scissor and anti-friction latches for reliable operation. A solid brass cylinder and two keys are supplied with the polished brass finish.

Commercial Doors Needing Always-Locked Security

Suits commercial, institutional or residential doors that must stay locked from the outside at all times. The vestibule function and wide face plate fit standard heavy-duty mortise preparations. Not for doors requiring a deadbolt, a thumb turn on the inside or a left-hand configuration.

2-3/4 Inch Backset With 1-1/4 By 8 Inch Face Plate

The lock installs into a mortise pocket with a 2-3/4 inch backset and a 1-1/4 by 8 inch wide face plate. Thru-bolted screwless knob assemblies secure the trim without visible fasteners. Verify these exact dimensions match the existing door preparation before purchase.

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 nameMAXTECH
Product lineMarks New Yorker 7NY10DW/3 Like
Product typeMortise Lock Knob Vestibule Function Always Locked Storeroom Latch Only Lockset with 1-1/4 in x 8 in Wide Face Plate - Through bolted plate assemblies, Screwles knobs
Design styleKnobs
Size & build
Surface finishPolished Brass
Main materialBrass
Backset distance2-3/4 in
More details
Security gradeHeavy Duty
Location typeCommercial/Institutional/Industrial/Residential
Lock keyingKeyed Different
Main functionStoreroom

Questions about this item

Will the 2-3/4" backset align with the existing mortise pocket in my older commercial door?

The lockset is built to a 2-3/4" backset, which is the standard commercial mortise dimension. Measure your current pocket centre-to-edge; if it matches, the new case will sit in the same cutout without enlargement.

How can I verify the scissor latch and anti-friction latch are engaging correctly after installation?

Close the door and confirm the latchbolt retracts smoothly when the outside key is turned, then releases fully when the key is removed. The scissor action should feel even with no drag, and the anti-friction surface should prevent binding on the strike.

Does the box include the 1-1/4" x 8" wide face plate, strike plate and the two keys for the solid brass cylinder?

Yes. The lockset ships with the wide face plate, screwless thru-bolted knob assemblies, solid brass cylinder and two keys. A separate mortise strike plate sized for your frame is not included and must be purchased to match the jamb.

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