Omnia 458/0 Traditional Single...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$122.00
$92.88
Omnia Omnia 458 Single Dummy Interior Traditional Knob Latchsets OMN-458/0

Omnia 458/0 Traditional Single Dummy Knob Latchset with 2-3/8" Backset and Solid Brass Construction

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Model: 458TD/0.SD.10B
From the Traditional Collection
Selected Finish is
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$122.00
$92.88
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Omnia 458/0 Traditional Single Dummy Knob Latchset with 2-3/8" Backset and Solid Brass Construction

The Omnia 458/0 Traditional Single Dummy Knob Latchset delivers professional-grade interior door hardware with solid brass construction and traditional styling. Featuring a 2-3/8" backset configuration with 2-1/2" projection and 2" diameter knob, this single dummy function provides decorative trim on one side of the door. The traditional rose design measures 2-5/8" in diameter and offers full lip construction for enhanced durability in residential applications.

Key Features

  • Precise Dimensions: 2-3/8" backset with 2-1/2" projection and 2" diameter knob ensures proper fit and professional appearance.
  • Solid Brass Construction: Premium solid brass materials provide exceptional durability and long-lasting performance for interior applications.
  • Traditional Rose Design: Classic 2-5/8" diameter traditional rose complements period and traditional architectural styles.
  • Single Dummy Function: Decorative trim on one side of door only, available for surface mounting or thru-bolting installation.
  • Full Lip Design: Enhanced rose construction provides superior mounting stability and finished appearance.
  • Multiple Rose Options: Compatible with Traditional, Modern, Arched, Rectangular, and Square rose configurations for design flexibility.
  • Professional Finish Options: Available in US3, US4, US10B, US14, US15, US26, and TB finishes to match existing hardware.

Technical Specifications

  • MAP Policy: Yes

Typical Applications

  • Residential Interior Doors
  • Traditional and Period Home Renovations
  • Custom Home Construction
  • Historic Property Restoration
  • High-End Residential Projects
  • Decorative Door Applications
  • Single-Side Access Requirements

Why Omnia 458/0?

Omnia 458/0 Traditional Knob Latchsets deliver residential-grade reliability with solid brass construction and full lip rose design for demanding interior applications. The traditional styling and multiple rose options provide design flexibility while maintaining the durability expected from premium brass hardware. Engineered for residential applications where dependable performance and classic aesthetics are essential.

Manufacturer Resources

Omnia 2026 Door Hardware Catalog

Product Specs

Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Product Type:
Knobsets
Subcategory:
Latch Locks
Commercial/Residential:
Residential
Handle Type:
Knob
Product Attribute:
Cylindrical Locks
MAP Policy:
Yes
Product Function:
Dummy
Product Category:
Mechanical Locks
Product Substrate:
Brass
Collection:
Traditional
Department:
Door Hardware

Omnia 458TD/0.SD.10B – Frequently Asked Questions

1) What does a single dummy knob like the Omnia 458/0 actually do on a door?
A single dummy is trim only. The Omnia 458/0 puts a fixed 2 inch knob on one face of the door with no latch, no spindle turning, and nothing that retracts. It is what you use on a closet door or the inactive leaf of a pair, where you need something to pull on and a magnetic or roller catch (ordered separately) does the holding. If you need the knob to turn and throw a latch, this is the wrong function.
2) Does the Omnia 458 dummy knob need a bore hole in the door, or does it surface mount?
The 458/0 dummy mounts to the face of the door, either surface mounted or thru-bolted, so a standard 2-1/8 inch cross bore is not required for the trim itself. That matters on a slab you have not drilled yet, and it matters more when you are adding a pull to a closet door that was never prepped. If you are thru-bolting, you need access to both faces.
3) Why does a dummy knob list a 2-3/8 inch backset if there is no latch?
The 2-3/8 inch backset on the Omnia 458/0 is the layout dimension, the centerline of the knob back from the door edge. It tells you where the knob will sit relative to the stop and the casing, which is the number that decides whether your knuckles clear the jamb on a tight reveal. The knob projects 2-1/2 inch off the face. On an existing opening already bored at 2-3/4 inch backset, the dummy will sit half an inch further in from the edge than the working sets beside it.
4) Will the Omnia 458 dummy match the trim on the rest of my doors?
Rose shape and finish are both chosen at order. The 458/0 comes with a Traditional, Modern, Arched, Rectangular, or Square rose, and in Polished Brass, Satin Brass, Polished Nickel Plated, Satin Nickel Plated, Polished Chrome Plated, Black Oil-Rubbed, or Tuscan Bronze. Every one of those seven finishes is offered in all five rose shapes, so you can pick the rose to match the working sets on the other openings and keep the finish consistent down the hall. The traditional rose measures 2-5/8 inch across, which is the footprint it will cover on the door face.
5) Can I use the Omnia 458 dummy knob on a commercial office or school door?
The 458 is residential-grade hardware, built for interior doors in houses, renovations and high-end residential work. For a commercial opening carrying traffic or a spec, look at the Schlage A170 single dummy trim, a Grade 2 heavy duty dummy for doors 1-3/8 to 1-7/8 inch, or the BEST 6K Series single dummy trim, also Grade 2. Those are the ones that answer a Grade requirement on a drawing.
6) I need dummy knobs on both sides of a French door pair. Is one Omnia 458/0 enough?
No. The 458/0 is a single dummy, one knob for one face. A pair of doors with a knob on each visible face needs two of them, or a set sold as a pair. Emtek's Arts and Crafts Hammered Egg dummy and the Classic Brass Crystal Georgetown and Providence dummy knobsets all ship as pairs if you would rather buy it as one item.
7) What is the difference between a dummy knob and a passage knob for a closet door?
A passage set has a working latch: turn the knob, the latchbolt retracts, and the bolt keeps the door closed against the strike. A dummy has none of that. Use the dummy when the door is held by a catch or is inactive, and a passage set when you want a latch. If passage is what you need in the same residential look, the Baldwin Estate 5000 Baltimore passage knob uses the same 2-3/8 inch backset and ships with a full lip strike, and the Baldwin Estate 5011 Colonial passage knob with 5058 rose is another traditional-style option.
8) I need a dummy knob on both sides of a double door - what should I order instead of a single dummy?
A single dummy such as the Omnia 458/0 puts decorative trim on one side of the door only. For trim on both faces, the Emtek Arts and Crafts Hammered Egg dummy is supplied as a dummy pair, as are the Emtek Classic Brass Crystal Georgetown and Providence dummy knobs. Ordering two single dummies is the alternative when the knob style has to stay in the Omnia traditional family.
9) Can I use the Omnia 458/0 on a bathroom or bedroom door that needs to lock?
No - the 458/0 is a dummy, decorative trim with no locking mechanism. For a privacy function knob in a similar traditional look, the Baldwin Estate 5077 Bethpage privacy knob with R027 rose and the Baldwin Estate 5000 privacy knob with 2-3/8 inch backset and full lip strike are privacy functions, as is the Deltana 6112 St. Thomas knob for doors 1-3/8 to 2 inch. Graded options include the Dexter C2000 privacy ball knob and the Pamex FTF Baron privacy knob, both privacy/bed/bath function.
10) My facility spec calls for ANSI Grade 1 knobs - does the Omnia 458/0 meet that, and what does if not?
The Omnia 458/0 is residential hardware. Where a Grade 1 cylindrical knob is specified, the Corbin Russwin CK4310 passage/closet knob is Grade 1 for doors 1-3/8 to 2 inch, the Falcon X101 passage knobset is Grade 1 heavy duty with an interchangeable core and a fire rating for doors 1-3/8 to 2-1/4 inch, the Sargent 8XG04 is a Grade 1 storeroom/closet knob with a 2-3/4 inch backset, and the BEST 8K Series entrance knob is Grade 1 heavy duty.
11) Is the Omnia 458 knob solid brass or brass plated?
Solid brass, not a plated pot metal core. That is why the finish list splits into unplated brass options (Polished Brass, Satin Brass) and plated ones (Polished Nickel Plated, Satin Nickel Plated, Polished Chrome Plated). On an unlacquered or living brass finish, solid stock is what lets it wear and patinate rather than flake down to a different colored substrate.
12) What else do I need to order with an Omnia 458 dummy knob to finish the door?
The dummy supplies the knob and rose and nothing that holds the door shut. Budget for a catch, a roller or magnetic catch at the head or a ball catch in the top rail, plus the strike or plate that goes with it. Hinges and any door stop are separate too. If the door actually needs to latch, you are buying the wrong function and want a passage set instead.
13) Is there a cheaper dummy knob than the Omnia 458 for a rental turn or a spec build?
For volume interior work where the look does not have to be solid brass, the Cal-Royal BA40 Barrington dummy knob covers doors 1-3/8 to 1-3/4 inch, and the Bravura Biloxi round trim dummy knobset is a Grade 2 option. The Omnia 458 earns its place on a restoration or a high-end interior where the rose shape and the brass finish have to match existing period hardware; on a turnover unit it is more hardware than the door needs.
14) What does full lip rose mean on the Omnia 458 knob?
Full lip describes the edge of the rose, the plate that sits between knob and door. The lip wraps down to the door face rather than stopping flat, which gives the mounting a deeper bearing surface and hides the door face at the perimeter. Practically, it is more forgiving of a face that is not perfectly flat or a spot where old hardware left a mark, since the rose covers a full 2-5/8 inch circle on the traditional shape.
How fast can I get the Omnia 458TD/0.SD.10B 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 458TD/0.SD.10B come with a warranty?
Absolutely. The Omnia 458TD/0.SD.10B 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 458TD/0.SD.10B?
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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