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Polished brass right-hand mortise lock with wide faceplate and lever

MAXTECH

MAXTECH Polished Brass Right Hand Mortise Lock 92 Latch Only

SKU CH-0398-KCN78

Right-hand mortise lock with 2-3/4" backset, latch-only function and polished brass finish

  • Lock keyingKeyed Different
  • Surface finishPolished Brass
  • Product typeMortise Lockset
  • Polished brass finish enhances door appearance
  • Right-hand configuration suits specific door swing direction
  • 2-3/4" backset matches standard door preparation
  • Latch-only design simplifies installation for vestibule use
  • Thru-bolted screwless lever plates provide secure mounting

Polished Brass Mortise Lock 92

This right-hand mortise lockset from MAXTECH is built for commercial vestibule or storeroom doors that must stay locked from the outside at all times. The latch-only design omits a deadbolt and rocker, so entry is controlled solely by the exterior cylinder. It fits the same door preparation as the Marks New Yorker 7NY92DW and comes with a solid brass cylinder and two keys.

Installation notes and common issues

The 2-3/4" backset and 1-1/4" x 8" wide faceplate match standard commercial mortise pockets, and the thru-bolted screwless lever plates simplify mounting. Because the lock is handed, the installer must verify the door swing before cutting; a left-hand door will not accept this unit. The captivated spindles and lever support springs reduce alignment problems, but the cylinder-only exterior means there is no interior thumb turn for quick egress.

Practical limits of the latch-only function

Without a deadbolt the lock relies entirely on the scissor and anti-friction latch for security, which is suitable for interior vestibules or storerooms but not for perimeter doors that need a bolt. The right-hand configuration cannot be field-reversed, so the hardware is incompatible with left-hand or double-acting openings. The ADA-compliant lever meets accessibility requirements, yet the always-locked exterior cylinder prevents free entry from the outside under any circumstance.

How it compares

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

Price $158.99
Pricier than about 78% of the 2,145 comparable items (median $55.99).

Specifications

Product
Product typeMortise Lockset
Size & build
Surface finishPolished Brass
More details
Lock keyingKeyed Different

Questions about this item

How do I confirm the mortise lock is functioning correctly after installation?

Operate the lever from both sides — the outside cylinder should retract the latch with a key and the inside lever should move freely without a thumb turn, confirming the vestibule function works as intended.

What components are included and what must be purchased separately?

The set includes the mortise case, wide 1-1/4" x 8" faceplate, screwless lever plates, solid brass cylinder and two keys; a strike plate and any door-preparation tools are not included.

Which backset and handing should I select for a standard commercial door?

Choose the 2-3/4" backset with right-hand orientation to match the door preparation used for the Marks New Yorker 7NY92DW mortise lockset.

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