Specifications

Thickness1-3/4"
Approx. Weight3 lb
Lock PrepMortise, 1" x 3-3/4" deep pocket, 2-1/2" backset
FinishBrass
SKUB071Z957KP

Package Includes

  • Mortise lock body
  • 1-1/8" mortise cylinder with 2 SC1 keys
  • Exterior plate with knob
  • Interior plate with knob and turnpiece
  • Strike plate
  • Mounting screws and thru-bolts

Key Features

  • Solid brass deadbolt, 1" throw
  • 2-1/2" backset, 1" x 7-5/8" faceplate
  • 1-1/8" 5-pin mortise cylinder, SC1 keyway
  • Easy to rekey, 2 keys included
  • Knob trim with interior deadbolt turnpiece
  • Long plates: 2-3/4" x 10" outside, 2-1/4" x 7" inside
  • Fits standard 1-3/4" doors

This Maxtech mortise apartment entry lockset is the classic knob-and-deadbolt lock found on apartment unit doors throughout New York City. It pairs a solid brass deadbolt with a latchbolt in a single mortise case, with a 2-1/2" backset and a 1" x 7-5/8" faceplate. It is a direct replacement for worn or broken apartment entry locks on standard 1-3/4" steel and wood doors.

The 1-1/8" mortise cylinder uses the common SC1 (Schlage C) keyway and is easy to rekey. Two keys are included. Long escutcheon plates (2-3/4" x 10" outside, 2-1/4" x 7" inside) cover old prep holes and give a clean finished look.

Check your measurements before ordering. Mortise locks are not one-size-fits-all. Compare your existing lock's faceplate, backset and cylinder location with the dimension drawing and drilling template in the product photos.

Features
  • Solid brass deadbolt with a 1" throw for added security
  • 2-1/2" backset, 1" x 7-5/8" edge faceplate
  • 1-1/8" 5-pin mortise cylinder, SC1 keyway, easy to rekey
  • Knob trim on both sides with an interior turnpiece for the deadbolt
  • Long-plate escutcheons cover old holes on replacement jobs
  • Handed lock: available in Left Hand and Right Hand
Specifications
TypeMortise apartment entry lockset
ModelMaxtech 1033 series
MaterialSolid brass bolt and trim
FinishBrass
Backset2-1/2"
Faceplate1" x 7-5/8"
Lock case3-23/32" x 5-1/2"
Mortise pocket1" wide x 3-3/4" deep
Deadbolt1" throw
Cylinder1-1/8" mortise, 5-pin, SC1 keyway
Keys2 included
Exterior plate2-3/4" x 10"
Interior plate2-1/4" x 7"
Door thickness1-3/4" (standard)
HandingLeft Hand or Right Hand (select above)
Shipping weight3 lb
What's Included
  • Mortise lock body with deadbolt and latchbolt
  • 1-1/8" mortise cylinder with 2 SC1 keys
  • Exterior plate with knob
  • Interior plate with knob and deadbolt turnpiece
  • Strike plate
  • Mounting screws and thru-bolts
Which handing do I need?

Stand on the outside of the door (the hallway or keyed side) and push the door open.

  • Right Hand: hinges on the right, knob and cylinder on the left.
  • Left Hand: hinges on the left, knob and cylinder on the right.

If the door pulls toward you from the outside, it is a reverse-bevel door. Call us before ordering and we will confirm the right lock.

Installation

Fits a door mortised 1" wide by 3-3/4" deep. Drilling template: 1-1/4" cylinder hole, 7/8" turnpiece hole, 7/8" knob hole, and 1/2" thru-bolt holes. The installation sheet and full-size template are shown in the product photos. Professional installation is recommended when converting a door from a different lock type.

Sold by Universal Fireproof Door Co., a Brooklyn, NY manufacturer and supplier of commercial steel doors, frames and door hardware. Local pickup in Brooklyn and Brentwood, NY. Questions about fit or handing? Call us at (718) 455-8442.

What's the lead time for custom sizes?

3-5 Business days, Next day expedition available

Does this come primed or painted?

For an additional fee

Is installation included?

No

Trusted by NYC contractors & property managers

5.0 on Google ReviewsInstalled in Brooklyn 12-unit buildingPassed FDNY inspection
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Photo of reviewer Aj Peralta
Aj Peralta
★★★★★
Highly recommended.
Highly recommended.
Easy transaction, fast courteous response and they offer discounts.Most importantly, they truly value their customers.Work done was excellent and product was great quality.I am very satisfied.
Photo of reviewer Brad Waltman
Brad Waltman
★★★★★
If I could give Universal 10 stars I would
If I could give Universal 10 stars I would, from their communication, quality of work, and their employees, I was genuinely impressed by them all. I had 2 doors installed in my facility by their crews and they did phenomenal work. I had ...
Photo of reviewer Alexander Morrison
Alexander Morrison
★★★★★
As an Interior Designer I recently had the pleasure of working with the wonderful staff at Universal Fire Proof Doors.
As an Interior Designer I recently had the pleasure of working with the wonderful staff at Universal Fire Proof Doors.
I had commissioned them to design, fabricate, deliver and install a really beautiful Full French Motif Door for the main entrance to one of my clients Mix Use Residential buildings in Brooklyn Heights, NY.Not only did they deliver a gre...
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J.D.
★★★★★
Universal fire door made our door purchase so easy.
Universal fire door made our door purchase so easy.
We told them what we needed and they worked with us to get our beautiful front entry door. We needed a high security option for our office front.Universal are thorough in their email and phone communication to avoid any errors on sizing ...
Photo of reviewer Forever New Construction Inc.
Forever New Construction Inc.
★★★★★
We hired Universal Fireproof Doors and had a fantastic experience from start to finish.
The entire team was professional, efficient, and reliable. A special shoutout to Lorena, who was absolutely amazing, knowledgeable, responsive, and a pleasure to work with. She made the whole process smooth and stress-free. Highly recomm...
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Zina L
★★★★★
True professionals!
True professionals!
We needed - what else - fireproof doors. Called this place, they sent someone to take the measurements, we were provided with a quote, ordered the doors, they were manufactured, and installed. All was done professionally and perfectly....
Photo of reviewer Cassandra Metzger
Cassandra Metzger
★★★★★
I always have a great experience working with Universal.
We have ordered several fire rated doors for our NYC properties and Lorena is a pleasure to deal with. They can usually provide an estimate for door replacements just with pictures, making my life easier, install is seamless and turnarou...
Photo of reviewer Evette Robledo
Evette Robledo
★★★★★
As the manager for my family building, I answer to a trust.
As the manager for my family building, I answer to a trust.
I was a bit nervous about my choice to choose UFD. Truth of the matter is everything was handled with care, from customer service, estimate, fabrication and install. Any questions or changes that needed to be done, where answered and cha...
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tom king
★★★★★
Outstanding customer service and fair pricing
Outstanding customer service and fair pricing
We have been using them for over 15 yearsFrom start to finish always a smooth processProfessional at its finest
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Michael P
★★★★★
The workers were punctual, polite, and respectful of the property,
The workers were punctual, polite, and respectful of the property,
their work was professional and much neater than I thought it would be considering the doorframe butted right up against new Sheetrock on the inside,which they didn’t leave a scratch on it 👌,,, the price was great, and anyone I spoke to ...

Why contractors buy from Universal Fireproof Door

We're not a reseller — we're the fabricator.

  • Main fabricators, not a reseller

    Every door is built in-house. No middlemen, no markup.

  • Made in New York

    Fabricated on Long Island. Local pickup and same-day service in NYC.

  • Fast turnaround

    Standard doors ship in 24–72 hours. Custom sizes handled quickly.

  • Bulk order discounts

    Competitive pricing for contractors, property managers and developers.

  • Special requirements

    Non-standard sizes, custom preps and special hardware, built in our shop.

  • FDNY + UL certified

    Meets NYC building codes and fire safety standards.

Need it fast or custom? Special sizes, preps and requirements with quick lead times. Call (718) 455-8442
Professional installation Door and hardware installation for residential and commercial projects. Request Installation
Multi-door project? Bulk pricing on 5+ doors with fast turnaround.