Omnia D12198 Solid Brass Deadb...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$506.99
Omnia Omnia D12198 Deadbolt Knob Lockset With Plates, 10 9/16” Overall, 2 3/8" W, 3 1/4" Projection, 5-1/2" Center to Center OMN-D12198

Omnia D12198 Solid Brass Deadbolt Knob Lockset with Sideplates, 10-9/16" Overall Length

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Model: D12198/A26D
$506.99
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Omnia D12198 Solid Brass Deadbolt Knob Lockset with Sideplates, 10-9/16" Overall Length

The Omnia D12198 solid brass deadbolt knob lockset with plates combines traditional craftsmanship with reliable security for residential entry doors. This sideplate lockset measures 10-9/16" overall length, 2-3/8" width, and 3-1/4" projection, with 5-1/2" center to center spacing for standard residential door preparations. Constructed from solid brass for lasting durability, it is available in multiple finish options including US10B, US14, US15, US26, and US26D.

Key Features

  • Precise Dimensions: 10-9/16" overall length with 2-3/8" width and 3-1/4" projection for accurate door preparation and professional installation.
  • Standard Center Spacing: 5-1/2" center to center spacing accommodates standard residential door preparations.
  • Solid Brass Construction: Premium solid brass materials provide exceptional durability and corrosion resistance for long-term performance.
  • Sideplate Design: Integrated plates offer enhanced security and a refined appearance compared to standard cylindrical locksets.
  • Multiple Finish Options: Available in US10B, US14, US15, US26, and US26D finishes to complement various architectural styles and hardware suites.
  • Deadbolt Security: Provides superior security with deadbolt locking mechanism for residential entry door applications.
  • Knob Handle Design: Traditional knob operation offers familiar functionality and timeless aesthetic appeal.

Technical Specifications

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

Typical Applications

  • Residential Entry Doors
  • Single-Family Home Security
  • Townhouse and Condominium Units
  • Apartment Building Individual Units
  • Residential Renovation Projects
  • Custom Home Construction
  • Multi-Family Housing Developments

Why Omnia D12198?

Omnia D12198 deadbolt locksets deliver residential-grade security with solid brass construction engineered for reliable daily operation. The precision-manufactured components and multiple finish options ensure long-lasting performance and aesthetic compatibility with diverse architectural styles. Designed specifically for residential applications where dependable security and traditional craftsmanship are essential.

Manufacturer Resources

Omnia 2026 Door Hardware Catalog

Product Specs

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

Omnia D12198/A26D – Frequently Asked Questions

1) Do I have to specify handing on the Omnia D12198 sideplate lockset?
Handing matters here, and it is a required selection: left handed or right handed. Stand outside the door, on the side you enter from. If the hinges are on your left it is a left hand door, if on the right it is right hand. The sideplates and knob orientation are built to that hand, so an unhanded order cannot be filled.
2) What is the difference between the single cylinder, double cylinder and dummy versions of the Omnia D12198?
Four functions are offered on the D12198. Standard is the keyed-outside deadbolt with a thumbturn inside. Double Cylinder takes a key on both sides, which is what you use when there is glass next to the door and you do not want someone reaching through to the turn. Single Dummy is a non-operating plate and knob for a fixed leaf or a closet, and Pair Dummy gives you both sides for an inactive door. Dummy versions do not lock at all, so do not order one for the active entry leaf.
3) Will the Omnia D12198 fit my existing door prep?
The D12198 is a sideplate lockset, not a standard round-rose deadbolt, so it needs a plate-length prep rather than just a bore. The plate runs 10-9/16 inches overall by 2-3/8 inches wide with 5-1/2 inch center to center spacing between the knob and the deadbolt, and it projects 3-1/4 inches off the face. If your door currently carries a two-bore prep at 5-1/2 inch centers, the holes line up; if it has a single deadbolt bore only, you will be drilling the second bore and mortising for the plate.
4) What is the closest equivalent to the Omnia D12198 if I want a lever instead of a knob on the same kind of long plate entry set?
The Omnia D12198 is a knob lockset, so the handle style is fixed at a knob. For a lever on a single point plate-style entry set, the Emtek Modern Rectangular Single Point Lockset with Hanover Lever covers the Hanover series in an entry function, and the Emtek Modern Brass Tubular Single Point Lockset with Helios Lever covers the Helios series, also entry function. Both replace the knob with a lever while keeping the single point plate format. Note the D12198 is offered in Standard, Double Cylinder, Pair Dummy and Single Dummy functions, so if you need a dummy or double cylinder configuration, the Emtek lever sets listed only carry an entry function.
5) I need a matching non-locking set for a closet or a pair of French doors alongside my entry hardware - what should I order?
The Omnia D12198 itself covers that: alongside the Standard and Double Cylinder functions it is offered as a Single Dummy and as a Pair Dummy, so the inactive leaf or closet door gets the same solid brass sideplate trim in the same finish as the keyed opening, in Oil-Rubbed Bronze, Polished Nickel Plated, Satin Nickel Plated, Polished Chrome Plated or Satin Chrome Plated. The Emtek single point locksets in the Round, Hanover and Helios series are entry function sets, so they will not fill a dummy opening in a matching suite.
6) Is the Omnia D12198 knob lockset suitable for a commercial building entrance?
No. The D12198 is built for residential entry doors, single family homes, townhouses, condos and individual apartment unit doors. For a commercial opening on a code-governed egress path you want a Grade 1 or Grade 2 commercial lockset instead, not this one.
7) What finishes does the Omnia D12198 come in and will they match my other brass hardware?
Five finishes across the range: Oil-Rubbed Bronze, Polished Nickel Plated, Satin Nickel Plated, Polished Chrome Plated and Satin Chrome Plated. Every one of the four functions is offered in all five, so a keyed entry on the front door and a dummy set on a fixed leaf can be finished the same. The body is solid brass under the plating, which is what lets the oil-rubbed bronze wear in rather than flake.
8) Can I order the Omnia D12198 as a matching dummy set for a fixed or inactive door leaf?
Yes, and in two forms. Single Dummy covers one face, for a closet or a leaf you only push from one side. Pair Dummy gives you plates and knobs on both faces of an inactive leaf on a double door. Both come in the same five finishes as the keyed versions, so a pair of French doors gets a keyed D12198 on the active leaf and a Pair Dummy on the inactive one with an identical look.
9) Should I use a sideplate lockset like the Omnia D12198 or a separate knob and deadbolt?
A sideplate set puts the knob and the deadbolt on one continuous brass plate, so you get a single trim piece 10-9/16 inches long instead of two separate roses. It reads as one piece of hardware on the door and covers more of the face, which helps on a renovation where the old prep left marks. Separate knob-and-deadbolt sets are the easier choice when the two bores on your door are not at 5-1/2 inch centers, because the sideplate spacing is fixed and they are not.
10) How does the Omnia D12198 compare to an Emtek single point entry lockset?
Different layout for the same door. The D12198 puts a knob and a separate deadbolt on one long sideplate, so the deadbolt throws independently of the knob. Emtek's 5302 Modern Rectangular single point locksets, including the Round knob version and the Hanover and Helios lever versions, are entry function single point sets, meaning one mechanism handles latching and locking rather than a knob plus a distinct deadbolt. Pick the D12198 when you want a dedicated deadbolt, and pick a single point set when you want one operation on the door.
11) I want levers instead of knobs on my entry door, what should I look at?
The D12198 is a knob set only, so if the spec calls for a lever, look at Emtek's Modern Rectangular single point locksets with the Hanover lever or the Helios lever. Both are entry function. Worth knowing before you commit: a lever is generally what gets specified when accessibility is a factor, and a knob will not satisfy that.
12) How far does the Omnia D12198 stick out from the door face, and will it clear a storm door or a jamb return?
Projection is 3-1/4 inches off the face. That is the number to check against a storm door or a screen door hung close to the entry leaf, and against any tight jamb return or adjacent wall, because the knob swings within that envelope. Plate width is 2-3/8 inches, so on a narrow stile door measure the flat of the stile before ordering.
13) What is the difference between the Emtek Hanover and Helios single point locksets when I am cross-shopping against the Omnia D12198?
Both are single point locksets in an entry function, and the difference is the lever and trim family: the Hanover set uses the Hanover lever on a Modern Rectangular plate, while the Helios set uses the Helios lever on a modern brass tubular plate. Against either of them, the Omnia D12198 is the knob answer, a solid brass deadbolt knob lockset with sideplates at 10-9/16 inch overall, 2-3/8 inch wide, 3-1/4 inch projection and 5-1/2 inch center to center, in a residential application. Pick by handle style and plate family first, because all three occupy the same long plate format on the door face.
14) Can I standardize a whole building's unit doors on the Omnia D12198?
It is built for individual unit doors in apartment buildings, townhouses, condos and multi-family developments, and the finish and function range is consistent enough to spec across a property: five finishes, four functions, both backsets, both hands. What it will not do is cover the building's common area or egress doors, since it is a residential product.
15) Is the Omnia D12198 solid brass all the way through or just plated?
Solid brass construction, with the nickel and chrome options plated over that brass body. On an exterior entry door that matters for corrosion: a solid brass substrate does not rust out from under the finish the way a steel core can.
How fast can I get the Omnia D12198/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 D12198/A26D come with a warranty?
Absolutely. The Omnia D12198/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 D12198/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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