Marks USA
Marks USA New Yorker 9NY10DW/3 Polished Brass Right Hand Mortise Lockset
Right-hand mortise lockset with screwless thru-bolted knobs, solid brass plates and cylinder, latch-only function, two keys included
- FinishPolished Brass
- TypeMortise Lockset
- KeyingKeyed Different
- Vestibule security with always-locked exterior
- Screwless knobs thru-bolted for tamper resistance
- Solid brass construction resists corrosion
- Right-hand orientation fits specific doors
- Two keys included for immediate use
Marks New Yorker Mortise Lockset
The Marks New Yorker 9NY10DW/3 is a polished brass mortise lockset designed for right-hand doors in commercial vestibule or storeroom applications. It operates with a latch-only mechanism and no deadbolt, keeping the outside locked at all times while allowing free egress from the inside. A solid brass cylinder and two keys are included for keyed-different access.
Screwless Thru-Bolted Knobs
Screwless knobs mount through the door with thru-bolts for a clean appearance and secure attachment that resists loosening under heavy use. Solid brass face plates and trim provide corrosion resistance and durability in high-traffic entrances. The 1-1/16 by 7-5/8 inch face plate fits standard mortise preparations without additional machining.
Commercial Storeroom and Vestibule Doors
This lockset suits building managers and contractors fitting right-hand doors that must remain locked from the outside at all times. It is not intended for residential entry sets needing a thumb turn, privacy function or deadbolt. Left-hand doors or openings requiring a passage or classroom function will need a different configuration.
Highlights
- Vestibule security with always-locked exterior
- Screwless knobs thru-bolted for tamper resistance
- Solid brass construction resists corrosion
- Right-hand orientation fits specific doors
- Two keys included for immediate use
Specifications
| Finish | Polished Brass |
|---|---|
| Type | Mortise Lockset |
| Keying | Keyed Different |
Questions about this item
Does the solid brass cylinder need periodic lubrication or replacement?
The solid brass cylinder is built for long service; lubricate with dry graphite if the key feels stiff, otherwise no scheduled replacement is required.
What limits continuous operation of the latch-only mechanism on a busy door?
The latch-only design has no deadbolt, so the spring-loaded latch is the sole barrier; heavy traffic will wear the latch spring before any other part.
How much heat or noise does the lock generate during all-day use?
Mechanical mortise locksets produce no heat and only the faint click of the latch engaging; there is no motor or electronics to create noise or warmth.
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