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Polished brass mortise lockset with lever handle and wide faceplate

Marks USA

Marks USA 7NY92DW/3 Polished Brass Left Hand Mortise Lockset

SKU CH-FZAR-181H0

Polished brass mortise lockset with vestibule function, latch-only operation and ADA-compliant lever for left-hand doors

  • Lock keyingKeyed Different
  • Surface finishPolished Brass
  • Product typeMortise Lockset
  • Vestibule function keeps the outside lever always locked for security
  • Latch-only design with scissor and anti-friction latches ensures smooth operation
  • Thru-bolted screwless lever plates provide strong, clean installation
  • ADA-compliant lever and escutcheon meet accessibility requirements
  • Solid brass 1-1/8" cylinder rekeys easily and includes two keys

Polished Brass Mortise Lockset

The Marks USA 7NY92DW/3 is a new mortise lockset finished in polished brass with a left-hand configuration. It uses a vestibule function that remains locked from the outside and includes a latch only, without a bolt or rocker mechanism. A wide 1-1/4" x 8" faceplate and thru-bolted screwless lever plates suit commercial door preparation.

Mechanical operation and durability

Independent spring-loaded captivated spindles and lever support springs provide consistent lever return and smooth actuation. The scissor latch and anti-friction latch reduce binding during daily use. Solid brass escutcheon plates and levers resist wear in high-traffic installations while meeting ADA accessibility requirements.

Single-cylinder keyed entry

A solid brass 1-1/8" ease-to-rekey cylinder operates the lock from the exterior only, with no interior thumb turn. The cylinder ships keyed different and includes two keys. Buyers who need a deadbolt, interior thumb-turn operation, or a right-hand door swing should select a different lockset.

How it compares

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

Price $248.99
Pricier than about 87% 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 install the thru-bolted screwless lever plates on this mortise lockset?

Align the lever assemblies with the door prep, insert the through-bolts through the escutcheon plates, and tighten from the interior side — no exposed screws remain on the polished brass finish.

What maintenance will the scissor and anti-friction latch need over time?

Apply light PTFE lubricant to the latch bolt and pivot points annually; the solid brass cylinder can be rekeyed without replacing the entire lock body.

Which limit appears first during continuous heavy use of the vestibule function?

The independent spring-loaded captivated spindles and lever support springs are the first components to show wear under sustained high-cycle operation.

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