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Polished brass mortise lockset with screwless knob, right-hand, wide face plate

Marks USA

Marks USA New Yorker 7NY10D/3 Polished Brass Right Hand Mortise Lock Knob

SKU CH-3FKF-VJHSF

A right-hand mortise lockset with a 2-3/4" backset, classroom function and solid brass construction

  • FinishPolished Brass
  • TypeMortise Lockset
  • KeyingKeyed Different
  • Polished brass finish resists corrosion and matches classic décor
  • Mortise lockset with 10-inch face plate fits standard commercial door prep
  • Classroom function keeps outside locked while inside stays free
  • Screwless knobs with thru-bolted plates install cleanly without visible fasteners
  • Right-hand configuration ensures correct latch orientation for the door swing

Right-Hand Mortise Lockset

This Marks USA New Yorker 7NY10D/3 is a polished brass mortise lockset built for right-hand doors in commercial settings. It functions as a classroom lock with a latch and rocker but no deadbolt, and the cylinder is on the outside only with no interior thumb turn. The set includes a solid brass cylinder and two keys keyed different. It suits offices, vestibules or storerooms that need a single-sided keyed entry.

Solid Brass Through-Bolted Build

Wide 1-1/4 by 8 inch front plates are solid brass and mount with through-bolted assemblies for a firm, screwless fit. The knobs are screwless and use a self-adjusting spindle that takes up play over time. A scissor latch and an anti-friction latch work together to reduce wear on the strike. All visible trim is solid brass, matching the polished brass finish throughout.

2-3/4 Inch Backset Fit

The lockset is made for a 2-3/4 inch backset preparation; doors drilled to any other backset will not accept it. Right-hand handing is fixed, so left-hand doors require a different unit. No deadbolt is present, so this lock cannot secure a door independently of a separate deadbolt or latch guard. Buyers needing a thumb turn, a deadbolt or a left-hand version must select another model.

Highlights

  • Polished brass finish resists corrosion and matches classic décor
  • Mortise lockset with 10-inch face plate fits standard commercial door prep
  • Classroom function keeps outside locked while inside stays free
  • Screwless knobs with thru-bolted plates install cleanly without visible fasteners
  • Right-hand configuration ensures correct latch orientation for the door swing

Specifications

FinishPolished Brass
TypeMortise Lockset
KeyingKeyed Different

Questions about this item

How does the 2-3/4" backset determine where the mortise pocket is cut?

The 2-3/4" backset measures from the door edge to the spindle centre, so the mortise pocket must be centred at that distance for the lock case to align.

What door thickness range does the thru-bolted plate assembly accommodate?

The through-bolted plates clamp the lock body to both door faces, and the self-adjusting spindle compensates for typical commercial door thicknesses without extra spacers.

Which step is most often missed when fitting the screwless knobs on this right-hand set?

Installers often forget to rotate the outside knob until the spindle catch engages the self-adjusting mechanism, leaving the knob loose on the spindle.

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