We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in

Marks USA

Marks USA 9NY10A/26D Satin Chrome Left Hand Mortise Door Lock

SKU CH-PKW8-TD1V7 MPN 9NY10A/26D

Heavy-duty mortise lockset with screwless thru-bolted knobs and satin chrome finish for commercial or residential entry doors

  • Security gradeHeavy Duty
  • Location typeInstitutional/Industrial/Commercial/Residential
  • Backset distance2-1/2 in
  • Grade2
  • Lock keyingKeyed Different
  • Main functionEntrance
  • Satin chrome finish resists wear on solid brass plates
  • Left-hand mortise design fits specific door swing direction
  • Screwless thru-bolted knobs prevent loosening under heavy use
  • Grade 2 heavy-duty rating suits institutional and commercial doors
  • Solid brass cylinder includes two keys for immediate entry control

Mortise entry lock for commercial doors

This Grade 2 mortise lockset is built for institutional, industrial, commercial and residential entrances. It features a solid brass cylinder with satin chrome finish and screwless knobs that are thru-bolted for strength. The lock operates with a key outside and a thumb turn inside. Two keys are supplied.

Left-hand doors needing heavy-duty security

Suits specifiers who require a heavy-duty mortise lock on a left-hand door with a 2-1/2 inch backset. The screwless knob design resists tampering in high-traffic areas. Not for right-hand doors without re-handing, nor for buyers needing a cylindrical lock or electronic access control. Keyed-different cylinders cannot be matched to an existing master-key system.

Satin Chrome finish with 2-1/2 inch backset

The satin chrome finish on solid brass matches modern commercial hardware aesthetics. A 2-1/2 inch backset fits standard mortise door preparations. The deadbolt throws a full inch and the latch throws one-half inch. Verify the handing and backset before ordering.

How it compares

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

Price $215.99
Pricier than about 84% of the 2,145 comparable items (median $55.99).

Specifications

Product
Brand nameMarks
Product lineNew Yorker
Model name9NY10A/26D
Product typeMortise Lockset
Design styleKnobs
Size & build
Surface finishSatin Chrome
Main materialBrass
Backset distance2-1/2 in
More details
Security gradeHeavy Duty
Location typeInstitutional/Industrial/Commercial/Residential
Grade2
Lock keyingKeyed Different
Main functionEntrance

Questions about this item

How do I confirm the deadbolt and latch are operating correctly after installing this mortise lockset?

Turn the key outside and thumb-turn inside to extend the deadbolt fully; the 1" throw should seat solidly in the strike. Then operate the lever to retract the 1/2" latch and verify smooth, spring-assisted return.

What components are included in the box and what must be purchased separately for this 9NY10A/26D lockset?

The box contains the mortise lock body, satin-chrome front plate (1-1/16" x 7-5/8"), screwless thru-bolted knob trim on both sides, solid brass cylinder with two keys, and mounting hardware. No additional parts are required for standard installation.

Which handing should I select for a door that swings inward with hinges on the left?

Choose the left-hand version (9NY10A/26D) — it is factory-configured for doors hinged on the left when viewed from the outside, matching your swing direction.

More in Door Lock Sets & Deadbolts

Similar items