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Polished brass mortise lockset with screwless knob and wide face plate

Marks USA

Marks USA New Yorker 7NY10D/3 Polished Brass Left Hand Mortise Lockset

SKU CH-5WVV-W82GT

A polished-brass mortise lockset with classroom function, latch-and-rocker operation and screwless through-bolted knobs, supplied with a brass cylinder and two keys

  • FinishPolished Brass
  • TypeMortise Lockset
  • KeyingKeyed Different
  • Polished brass finish resists corrosion and matches classic décor
  • Mortise construction with 1-1/4" x 8" face plate fits standard commercial door prep
  • Classroom function allows keyed outside entry while inside lever remains free for exit
  • Screwless through-bolted knobs install quickly and stay secure under heavy use
  • Brass cylinder with two keys provides immediate keyed-different security

Polished Brass Mortise Lockset

This Marks USA New Yorker mortise lockset is built for commercial doors that require a classroom function with a latch and rocker but no deadbolt. The solid brass plates and through-bolted, screwless knob assembly suit high-traffic entrances where durability and a clean finish matter.

Classroom function limits daily use

The cylinder on the outside controls locking while the inside lever always retracts the latch for free egress. Because there is no interior thumb turn and no deadbolt, the lock cannot be secured from inside the room or provide a bolted barrier, limiting its use to corridors or classrooms that must remain unlockable from within.

Replaces older mortise sets lacking through-bolted

Installers upgrading from mortise hardware with exposed screws or separate rose assemblies gain the self-adjusting spindle and concealed mounting of this design. The jump is worthwhile when the existing door prep matches the 2-3/4" backset and wide 1-1/4" x 8" face plate without modification.

Highlights

  • Polished brass finish resists corrosion and matches classic décor
  • Mortise construction with 1-1/4" x 8" face plate fits standard commercial door prep
  • Classroom function allows keyed outside entry while inside lever remains free for exit
  • Screwless through-bolted knobs install quickly and stay secure under heavy use
  • Brass cylinder with two keys provides immediate keyed-different security

Specifications

FinishPolished Brass
TypeMortise Lockset
KeyingKeyed Different

Questions about this item

Is the 2-3/4" backset the right size for my door?

The 2-3/4" backset is a standard commercial dimension; measure from the door edge to the centre of the existing knob hole to confirm it matches.

What does the classroom function do once the lock is installed?

The outside knob is locked or unlocked by key only; the inside knob always retracts the latch for free egress, and there is no interior thumb turn.

How does the mortise lock case fit the door prep?

The wide front face plate measures 1-1/4" x 8" and the lock case is through-bolted, so the door must be mortised to accept that full plate size.

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