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Polished brass right-hand mortise lockset with screwless knobs

Marks USA

Marks USA New Yorker 9NY10A/3 Polished Brass Right Hand Mortise Door Lock

SKU CH-8YS6-PRE3Q

A right-hand mortise entry lockset with screwless thru-bolted knobs, solid brass plates and a brass cylinder supplied with two keys

  • Lock keyingKeyed Different
  • Surface finishPolished Brass
  • Product typeMortise Lockset
  • Solid brass plates resist corrosion and wear
  • Right-hand mortise design fits standard door preparations
  • Screwless knobs with thru-bolted mounting prevent loosening
  • Solid brass cylinder includes two keys for immediate use
  • Polished brass finish complements traditional hardware styles

Right-hand mortise entry lockset

This polished-brass mortise lockset is built for commercial and heavy-residential doors that require a right-hand swing. It supplies a solid-brass cylinder with two keys on the outside and a thumb-turn on the inside. The screwless knobs are thru-bolted for a clean look and firm attachment.

Check door handing and backset

Verify that the door swings to the right when viewed from the exterior before ordering. Confirm the existing mortise pocket accepts a 2-1/2 inch backset and a 1-1/16 by 7-5/8 inch front face plate. Ensure the deadbolt throw of 1 inch aligns with the strike preparation in the frame.

Upgrades from cylindrical knob locks

This mortise unit replaces a standard cylindrical knob set when greater durability and a thicker case are needed. The jump is worth it for doors that see high traffic or require the added strength of a thru-bolted, solid-brass chassis. It is not suited for left-hand doors or for retrofits that cannot accommodate the mortise pocket dimensions.

How it compares

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

Price $204.99
Pricier than about 83% 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

Does the lockset come with everything needed for installation, or must I buy a strike plate or mounting screws separately?

The set includes the mortise lock body, solid brass front plate, screwless knobs thru-bolted through the door, a solid brass cylinder on the outside, a thumb turn on the inside and two keys — no extra hardware is required.

How do I decide between a right-hand and left-hand version of this mortise lock?

Choose the right-hand model when the door swings into the room with hinges on the right; the latch and deadbolt orientation is factory-set for that swing direction.

What does the 2-1/2 inch backset mean once the lock is fitted to my door?

It positions the centre of the keyhole and knob spindle 2-1/2 inches from the door edge, so the mortise pocket must be cut at that distance for the lock to align correctly.

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