Omnia 12042 Solid Brass Mortis...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$701.77
Omnia Omnia 12042 Mortise Lever Lockset With Plates, 10-9/16" Overall, 2-3/8" W, 2-3/4" Projection OMN-12042

Omnia 12042 Solid Brass Mortise Lever Lockset with Plates, 10-9/16" Overall Length

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Model: 12042/A26D
$701.77
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$701.77
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Omnia 12042 Solid Brass Mortise Lever Lockset with Plates, 10-9/16" Overall Length

The Omnia 12042 solid brass mortise lever lockset delivers professional-grade security and durability for residential applications. This complete lockset features a precise 10-9/16" overall length, 2-3/8" width, and 2-3/4" projection for reliable mortise lock installation. Constructed from solid brass materials, this lever lockset provides long-lasting performance with included mounting plates for a complete installation, and is designed specifically for mortise lock door preparations.

Key Features

  • Precise Dimensions: 10-9/16" overall length with 2-3/8" width and 2-3/4" projection for accurate mortise lock applications.
  • Solid Brass Construction: Heavy-duty solid brass materials provide exceptional durability and corrosion resistance for long-term reliability.
  • Complete Lockset: Includes mounting plates for comprehensive installation with all necessary components.
  • Lever Handle Design: Ergonomic lever operation provides smooth, comfortable access while meeting accessibility requirements.
  • Mortise Lock Compatibility: Designed specifically for mortise lock applications with proper dimensional specifications.
  • Multiple Finish Options: Available in US3, US10B, US15, US26, and US26D finishes to match various architectural requirements.
  • Residential Grade Quality: Engineered for residential applications with professional-grade construction and materials.

Technical Specifications

  • MAP Policy: Yes
  • Commercial/Residential: Residential
  • Department: Door Hardware
  • Handle Type: Lever
  • Lock Type: Mortise
  • Product Category: Mechanical Locks
  • Product Group: Mechanical Locks
  • Product Subgroup: Bored Locksets
  • Product Type: Mortise Locks
  • Subcategory: Deadbolts

Typical Applications

  • Residential Entry Doors
  • Private Office Spaces
  • Bedroom and Study Areas
  • Multi-Unit Residential Properties
  • Custom Home Construction
  • Residential Security Upgrades
  • Interior Door Applications

Why Omnia 12042?

Omnia mortise lever locksets deliver professional-grade reliability with solid brass construction engineered for demanding residential applications where dependable performance is essential. The precise 10-9/16" overall dimensions and included mounting plates ensure proper installation and long-term operation. Multiple finish options provide architectural flexibility while maintaining the superior quality and craftsmanship Omnia is known for.

Manufacturer Resources

Omnia 2026 Door Hardware Catalog

Product Specs

Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Product Type:
Mortise Locks
Subcategory:
Deadbolts
Commercial/Residential:
Residential
Lock Type:
Mortise
Handle Type:
Lever
MAP Policy:
Yes
Product Category:
Mechanical Locks
Department:
Door Hardware

Omnia 12042/A26D – Frequently Asked Questions

1) How much room does the Omnia 12042 need on the door stile and in the mortise pocket?
The 12042 escutcheon plate measures 10-9/16 inches overall by 2-3/8 inches wide, with a 2-3/4 inch projection off the door face. The 2-3/8 inch plate width is the number that decides fit: a narrow stile or a door with glass close to the edge has to carry that full width flat on the face, and the 2-3/4 inch projection tells you how far the lever assembly stands off, which matters where a door swings back against a wall or an adjacent casing.
2) Which function of the Omnia 12042 do I order for a bedroom, a bathroom, or an entry door?
Nine functions are built on the 12042: passage, privacy, classroom, storeroom, standard, double cylinder, panic-proof, single dummy and pair dummy. Bedrooms and baths take privacy, which locks from inside without a key. Hall and closet doors take passage, latch only, no lock. An entry takes standard or double cylinder, the double being keyed both sides. Storeroom keeps the outside lever locked at all times with key entry. Single dummy is a surface-mounted pull with no latch for one leaf, pair dummy is the matched set for a pair of inactive doors.
3) Is the Omnia 12042 lever lockset heavy enough for a commercial building or apartment corridor?
The 12042 is a residential-grade lockset. Solid brass, and it will hold up on a house entry, a private office or an apartment unit door, but it carries no commercial grade rating. For corridor, stairwell or institutional traffic where a spec calls for ANSI/BHMA Grade 1, order a commercial mortise body instead: the Corbin Russwin ML2003 classroom lock, the Cal-Royal NM8050 office/entrance, or the Falcon MA101 passage lock are all Grade 1 mortise locksets we stock.
4) Will an Omnia 12042 drop into a door already prepped for a cylindrical lever lock?
No. The 12042 is a mortise lockset, which needs a rectangular pocket routed into the door edge plus the face holes for the spindle and cylinder. A cylindrical prep is a round cross-bore through the face and a small edge bore for the latch, and there is no pocket to accept a mortise body. Converting means machining the door. If the door is already bored cylindrical and you want a lever, look at a cylindrical lock like the Schlage PC10 passage instead.
5) Which mortise lock matches the Omnia 12042 2-1/2 inch backset?
The Omnia 12042 is ordered in a 2-1/2 inch or 2-3/4 inch backset with left or right handing. Among other brands, the Baldwin 6301 lever by lever entry/apartment mortise lock body uses a 2-1/2 inch backset and fits doors 1-3/4 inch and over, and the Baldwin 6310 entry/storeroom lock body is also 2-1/2 inch backset for doors 1-3/8 inch and over. If the door is already prepped at 2-3/4 inch, the Hager 3850E office mortise lock with lever and escutcheon uses a 2-3/4 inch backset for doors 1-3/4 inch to 2-1/2 inch.
6) What is a commercial-grade alternative to the Omnia 12042 mortise lever lockset for a high-traffic opening?
The Omnia 12042 is a solid brass mortise lever lockset built for residential applications. For a high-traffic commercial opening, the Cal-Royal NM8050 is a heavy duty Grade 1 office/entrance mortise lockset with an auxiliary deadlatch, fitting 1-3/4 inch doors, and the Corbin Russwin ML2003 is a Grade 1 mortise classroom lockset in the ML2000 Series, also for 1-3/4 inch doors. Both carry an ANSI/BHMA Grade 1 rating, which the 12042 does not claim; the 12042 instead gives you solid brass trim in Oil-Rubbed Bronze, Polished Brass, Polished Chrome Plated, Satin Chrome Plated, and Satin Nickel Plated for residential entry and interior doors.
7) What should I use instead of the Omnia 12042 if I need keypad or card access on a mortise door?
The Omnia 12042 is a mechanical solid brass lever mortise lockset with no electronic credential. For coded or credentialed entry on the same mortise prep, the Alarm Lock DL3500CR is a Grade 1 Trilogy electronic mortise lock with 300 user codes and a classroom function for doors 1-5/8 to 1-7/8 inch, the Schlage CO-100 is a Grade 1 standalone electronic mortise lock with a keypad reader in a privacy function for 1-3/4 inch doors, and the Dormakaba E-Plex E5086 is a Grade 1 entry/egress electronic pushbutton and card lock in a back-to-back mortise configuration. Note the DL3500CR door thickness range is thinner than the 1-3/4 inch the Schlage expects, so confirm your door.
8) Is a Sargent 4874 mortise deadbolt a substitute for the Omnia 12042 double cylinder lockset?
No. The Sargent 4874 in the 4870 Series is a double cylinder mortise deadbolt with a 2-3/4 inch backset - it is a deadbolt alone, with no lever and no latch. The Omnia 12042 in its Double Cylinder function is a complete solid brass lever lockset with plates. Use the 4874 when you are adding a separate deadbolt above an existing latchset, and the 12042 when one mortise case has to handle both the latch and the keyed operation.
9) What storeroom mortise lockset can I use in place of the Omnia 12042 storeroom function on a commercial building?
The Omnia 12042 includes a Storeroom function in solid brass for residential use. On a commercial storeroom, the Accentra 8805FL is a Grade 1 storeroom mortise lock in the 8800 Series with the Arcadia lever, and the Cal-Royal NM8080 is a heavy duty Grade 1 storeroom mortise lockset for 1-3/4 inch doors with an interchangeable core option. The interchangeable core on the NM8080 is what lets a facility rekey the opening without pulling the lock apart.
10) Can I use a Schlage PC10 cylindrical lock instead of the Omnia 12042?
Only if you are changing the door prep. The Schlage PC10 is a Grade 1 passage cylindrical lock, non-keyed with a rose, for 1-3/4 inch doors - a cylindrical lock goes into a bored hole, not a mortise pocket. The Omnia 12042 is a mortise lockset that needs a mortise pocket cut into the door edge. If the door is already mortised, stay with a mortise body such as the Schlage PM010 Grade 1 passage latch mortise lock rather than the cylindrical PC10.
11) What finishes does the Omnia 12042 lever lockset come in, and can I match the rest of the doors in the building?
Five finishes on the 12042: polished brass, oil-rubbed bronze, polished chrome plated, satin chrome plated and satin nickel plated. Those cover the standard US3, US10B, US26, US26D and US15 designations respectively, which is what lets you spec it against hinges and hardware already hung in the building. Because it's solid brass under the plating, the brass and bronze finishes wear into the metal rather than off a painted shell.
12) Do I need to buy escutcheon plates separately for the Omnia 12042?
No, the plates come with it. The 12042 ships as a complete lever lockset with mounting plates, so you get the lock body, levers and both escutcheons in one order. What you specify is handing, backset, function and finish. Keyed functions like standard, double cylinder and storeroom take a cylinder, so confirm what your keying calls for if you're pinning to an existing system.
13) Can I use the Omnia 12042 on a pair of French doors where one leaf stays fixed?
Yes, that's what the pair dummy and single dummy functions are for. The dummy versions of the 12042 are surface-mounted trim with no latch and no moving lock, so they mount on the inactive leaf and give you a lever that matches the working door exactly, same 2-3/8 inch plate and same finish. Order the live leaf as passage, privacy or a keyed function, and the fixed leaf as dummy.
14) I need a keyless or keypad mortise lock for a rental turnover, not a keyed lever. What should I look at instead of the Omnia 12042?
The 12042 is mechanical only, keyed cylinder or thumbturn, no electronics. For code-based access on a mortise prep, the Alarm Lock DL2700CR Trilogy T2 is a Grade 1 keypad mortise lock with classroom function and a weatherproof build, and the DL3500CR holds 300 user codes. If you want RFID or mobile credentials, the Dormakaba Saffire LX-I-M002 reads RFID with Bluetooth mobile access. Any of those means you stop rekeying between tenants.
15) I only need a passage function on an interior door - is there a simpler mortise lock than the Omnia 12042?
Yes. The Omnia 12042 is a full solid brass lockset with plates ordered by handing and backset, and it includes a Passage function. If all the opening needs is a latch with no key, the Schlage PM010 is a Grade 1 non-keyed passage latch mortise lock for 1-3/4 inch doors, the Falcon MA101 is a Grade 1 heavy-duty mortise passage lock with field reversible operation and a fire rating in the MA Series, and the Hager 3810S is a Grade 1 passage mortise lock with a rose and 2-3/4 inch backset. The Falcon MA101 being field reversible means you do not specify handing at order time, unlike the 12042.
16) What is the difference between the Omnia 12042 dummy functions and an Emtek dummy mortise lockset?
The Omnia 12042 is ordered in Single Dummy and Pair Dummy functions as part of the same solid brass lever family that also covers keyed and privacy functions, so a dummy door can match the working doors nearby. The Emtek dummy mortise entrance locksets are decorative trim sets by pattern: the 3019 Brisbane in brass, the 3102 Memphis, the 3104 Hamilton, and the 3106 Manhattan. Choose Emtek when you are matching an Emtek pattern already on the job, and the 12042 dummy when the rest of the openings are Omnia 12042.
17) I need a fire rated mortise lock - what are my options next to the Omnia 12042?
The Omnia 12042 is a solid brass residential lever lockset. Where a fire rated opening is called for, the Falcon MA101 is a Grade 1 heavy duty mortise passage lock with a fire rating and field reversible operation, the Schlage Electronics LEMD-GRW is a Grade 1 ENGAGE Series wireless mortise lock with a 3 hour fire rating, 125kHz proximity reader and Greenwich trim in right hand, and the Schlage Electronics LEBMB-ADD is a Grade 2 mobile-enabled mortise lock with a 3 hour fire rating covering privacy, office and apartment functions on 1-3/4 inch doors.
18) Is the Kaba Ilco 185 Series mortise lock an alternative to the Omnia 12042?
They solve different problems. The Kaba Ilco 185 Series mortise lock is a deadbolt function with no handing required, sold in a single pack. The Omnia 12042 is a lever lockset with plates that must be ordered left handed or right handed. If you need a deadbolt with no handing to specify, the 185 Series fits; if the opening needs a lever that latches, the 12042 is the one, and you will confirm hand and backset when you order it.
19) What mortise lockset replaces the Omnia 12042 in a behavioral health or anti-ligature setting?
The Omnia 12042 has a standard projecting lever, which is not suited to a ligature resistant opening. The TownSteel MRX-L-01 is a Grade 1 heavy duty anti-ligature lever mortise lockset in stainless steel with a passage function for 1-3/4 inch doors, and the MRX-A-01 is the same passage function in a satin stainless steel ligature resistant arch trim. For a hospital corridor needing push/pull operation, the Marks USA 5PDN is a Grade 1 hospital passage mortise push/pull paddleset that is ligature resistant and ADA compliant in satin stainless steel.
20) For a multi-unit apartment building, does the Omnia 12042 or a Baldwin 6301 suit the unit entry doors better?
Both are candidates. The Omnia 12042 is a solid brass lever lockset with plates in a residential grade, available in Storeroom, Classroom, Double Cylinder and other functions and in five finishes including Oil-Rubbed Bronze and Satin Nickel Plated. The Baldwin 6301LS is a lever by lever entry/apartment mortise lock body with a 2-1/2 inch backset for doors 1-3/4 inch and over, and the Baldwin 6310190RRLS is a right hand reverse lever by lever entry/storeroom mortise lock at the same 2-1/2 inch backset. The Baldwin items are lock bodies with an entrance/apartment or entrance/storeroom function, while the 12042 arrives as a complete lever set with plates.
21) Does a Sargent 130KB thumbturn work as a substitute for the Omnia 12042 privacy function?
No. The Sargent 130KB is a standard duty mortise thumbturn in the 8200 Series, and the Sargent 130W is a mortise thumbturn with a round backplate in the 7800 Series - both are trim pieces that turn an existing mortise case, not locksets. The Omnia 12042 in its Privacy function is a complete solid brass lever set with plates and its own mortise body. Order a thumbturn only when the mortise lock is already in the door and you are replacing the turn.
22) Is a lever better than a knob on the Omnia 12042 for a rental unit or accessible door?
Levers operate with a closed fist or a forearm, which is why accessible openings call for them over round knobs, and the 12042 is a lever set throughout. For a rental or multi-unit property, levers also stop the common complaint of tenants who can't turn a knob with full hands. If you need knob styling on a mortise prep instead, the Baldwin 6301 and 6310 mortise bodies are the knob-by-knob versions we carry, in a 2-1/2 inch backset.
23) What is the panic-proof function on the Omnia 12042 and when do I order it?
Panic-proof is one of the nine functions on the 12042. On a keyed entry it means the inside lever always retracts the latch on a single motion regardless of whether the outside is locked, so nobody gets trapped behind a locked door. Order it on a unit entry or any door where someone inside has to get out fast without hunting for a thumbturn. If you want both sides keyed and no free egress, that's the double cylinder version.
How fast can I get the Omnia 12042/A26D delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Omnia 12042/A26D come with a warranty?
Absolutely. The Omnia 12042/A26D is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Omnia 12042/A26D?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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