Omnia COLDB Colonial Single Cy...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$249.00
$192.64
Omnia Omnia Colonial Single Cylinder Deadbolt OMN-COLDB

Omnia COLDB Colonial Single Cylinder Deadbolt - Solid Brass 2-1/2" Diameter

(No reviews yet) Write a Review

Model: COLDBA34.34.5
$249.00
$192.64
Selected Finish is

In Stock (leaves warehouse same day if ordered before 3pm ET)

$249.00
$192.64
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Omnia COLDB Colonial Single Cylinder Deadbolt - Solid Brass 2-1/2" Diameter

The Omnia COLDB Colonial Single Cylinder Deadbolt delivers superior residential security with solid brass construction and classic colonial styling. This auxiliary deadbolt kit features a 2-1/2" diameter design with 9/16" exterior projection and 1-3/16" interior turnpiece projection for reliable door locking functionality. The keyed cylinder exterior and turnpiece interior configuration provides convenient access control for residential applications requiring enhanced security.

Key Features

  • Precision Dimensions: 2-1/2" diameter with 9/16" exterior projection and 1-3/16" interior turnpiece projection for proper door integration.
  • Solid Brass Construction: Premium solid brass materials provide exceptional durability and corrosion resistance for long-lasting performance.
  • Single Cylinder Function: Keyed cylinder on exterior with interior turnpiece allows convenient locking and unlocking from inside without a key.
  • Colonial Design: Traditional colonial styling complements classic and contemporary residential door hardware aesthetics.
  • Auxiliary Security: Deadbolt function provides additional security beyond standard lockset mechanisms for enhanced door protection.
  • Multiple Finish Options: Available in US3, US3A, US4, US5, US5A, US10B, US14, US15, US26, SB, and TB finishes to match existing hardware.
  • Residential Application: Specifically designed for residential door security where key-operated locking is required.

Technical Specifications

  • Commercial/Residential: Residential
  • Department: Door Hardware
  • Lock Function: Deadbolt
  • MAP Policy: Yes
  • Product Attribute: Deadbolts
  • Product Category: Mechanical Locks
  • Product Function: Cylinder x Thumbturn
  • Product Group: Mechanical Locks
  • Product Subgroup: Bored Locksets
  • Product Substrate: Brass
  • Product Type: Deadbolts
  • Subcategory: Deadbolts

Typical Applications

  • Single Family Residential Homes
  • Townhomes and Condominiums
  • Apartment Entry Doors
  • Private Office Spaces
  • Residential Security Upgrades
  • Historic Home Renovations
  • Custom Home Construction

Why Omnia COLDB?

Omnia Colonial deadbolts deliver residential-grade security with solid brass construction engineered for reliable daily operation. The precision 2-1/2" diameter design with colonial styling provides both functional security and aesthetic appeal for discerning homeowners. Built with quality materials and traditional craftsmanship for dependable residential door security applications.

Manufacturer Resources

Omnia 2026 Door Hardware Catalog

Product Specs

Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Product Type:
Deadbolts
Subcategory:
Deadbolts
Commercial/Residential:
Residential
Lock Function:
Deadbolt
Product Attribute:
Deadbolts
MAP Policy:
Yes
Product Function:
Cylinder x Thumbturn
Product Category:
Mechanical Locks
Product Substrate:
Brass
Department:
Door Hardware

Omnia COLDBA34.34.5 – Frequently Asked Questions

1) What backset do I need for the Omnia Colonial deadbolt if my door is already bored?
The COLDB comes in both of the standard backsets, 2-3/8 inch and 2-3/4 inch, so measure from the door edge to the center of the existing cross bore and order to match. Most residential doors are bored one way or the other, and the wrong backset will not line up with the hole you already have.
2) Is the Omnia COLDB keyed on both sides or key outside and thumbturn inside?
Single cylinder: key on the outside, thumbturn on the inside. Nobody inside needs a key to get out. If you have glass beside or in the door and want to stop someone reaching through and turning the inside knob, you need a double cylinder instead, keyed both sides, such as the Baldwin Reserve Double Cylinder Contemporary Round Deadbolt or the Emtek 8323 Modern Disc Deadbolt.
3) Is the Omnia COLDB deadbolt suitable for a commercial or multi-family building entry?
It is a residential deadbolt in solid brass, built for house and condo entries rather than commercial traffic. For a commercial opening or an apartment door where you need a graded lock, look at a Grade 1 unit like the Accentra D111, which fits 1-3/8 to 1-3/4 inch doors, or the Dexter DB1000 Series single cylinder, rated Grade 1 for 1-3/8 to 1-7/8 inch doors. For lighter duty use the Grade 2 Arrow DBX61 is the equivalent function, key outside and turn inside.
4) My door thickness is unusual, over 1-3/4 inches. Will the Omnia Colonial deadbolt work?
No. The COLDB is built for 1-3/8 or 1-3/4 inch doors only. For a thicker door, the Deltana 7312KA2 covers 1-3/8 to 2 inches, the Dexter DB1000 Series goes to 1-7/8 inches, and the Corbin Russwin DL3011 handles 1-3/4 to 2-1/4 inches.
5) My door is thicker than 1-3/4 inch - what deadbolt handles that if the Omnia COLDB does not?
The Omnia COLDB is built for 1-3/8 inch and 1-3/4 inch doors. For a thicker stile, the Corbin Russwin DL3011 cylindrical deadlock covers 1-3/4 inch to 2-1/4 inch, and the Deltana 7312KA2 double cylinder deadbolt covers 1-3/8 inch to 2 inch. The DL3011 is a cylinder x blank configuration rather than a thumbturn, so confirm the inside operation the opening needs.
6) I need a fire rated deadbolt on a labeled door - can I use the Omnia COLDB?
The Omnia COLDB is a residential deadbolt. Where a fire rating is called for, the Hager 3215 is a Grade 2 single cylinder deadbolt with a 1 inch throw and a Schlage C keyway, fire rated, for doors 1-3/8 to 1-3/4 inch. The Hager 3118 is a Grade 1 classroom deadbolt with a Schlage C keyway and 6-pin cylinder, also fire rated over the same thickness range. The Cal-Royal CRB800 carries a UL 3-hour fire rated latch.
7) The Omnia COLDB is a residential deadbolt - what should I use on a commercial opening instead?
For a commercial door, the Cal-Royal CRB800 is a heavy duty single cylinder deadbolt with a UL 3-hour fire rated latch and the same cylinder x thumbturn operation. The Accentra D111 is a Grade 1 single cylinder deadbolt with a 2-3/8 inch backset covering doors from 1-3/8 to 1-3/4 inch. The Omnia COLDB is specified for residential use.
8) I need a double cylinder deadbolt with keys on both sides, not a thumbturn - what takes the place of the Omnia COLDB?
The Omnia COLDB is cylinder x thumbturn, so it will not serve an opening that requires a key on both faces. The Baldwin Reserve Double Cylinder Contemporary Round Deadbolt and the square-trim BAL-DC.CSD are both double cylinder. The Emtek 8323 Modern Disc is a brass double cylinder deadbolt. The Dexter DB2000 double cylinder is Grade 2 and fits doors 1-3/8 to 1-3/4 inch, matching the door thickness range the COLDB covers.
9) Which deadbolts work with an interchangeable core if I am keying a building to an existing system, since the Omnia COLDB is a standard cylinder?
The Deltana CL200LAIC is a Grade 2 single deadbolt built for an interchangeable core, supplied without the cylinder, with a 2-3/4 inch backset that matches one of the two backsets the Omnia COLDB is offered in. The Arrow E61 26D IC is a Grade 2 single cylinder deadlock with SFIC prep less core for doors 1-3/8 to 1-3/4 inch. The Delaney LM Series is a Grade 1 single cylinder less core deadbolt in dull chrome.
10) What single cylinder deadbolt carries an ANSI grade if I need one on the submittal, comparable to the Omnia COLDB?
Among single cylinder cylinder x thumbturn deadbolts, the Accentra D111 and the Deltana CL200LM are Grade 1; the Dexter DB1000 is Grade 1 for doors 1-3/8 to 1-7/8 inch. At Grade 2 there is the Arrow DBX61, the Cal-Royal CB160 with a tamper-resistant cylinder guard, the Bravura 310B Elite in traditional round trim, and the Falcon D211. At Grade 3, the Cal-Royal LSD has an ADA ergonomic thumbturn for doors 1-3/8 to 1-3/4 inch.
11) How far does the Omnia Colonial deadbolt stick out from the door face?
The exterior rose projects 9/16 inch off the face and the interior turnpiece side projects 1-3/16 inch, on a 2-1/2 inch diameter rose. That matters on a door with a storm or screen door close in front of it, and it tells you how much room the turn needs on the inside face.
12) What finishes does the Omnia Colonial deadbolt come in for matching existing brass hardware?
Eleven finishes: Polished Brass, Polished Brass Unlacquered, Satin Brass, Antique Bronze, Unlacquered Antique Bronze, Shaded Bronze, Tuscan Bronze, Black Oil-Rubbed, Polished Chrome, Polished Nickel Plated, and Satin Nickel. The unlacquered brass and unlacquered antique bronze are the ones that will live-finish and darken with handling, which is what you want if the existing hardware in an older house has already aged; the lacquered polished brass will stay bright and stand out next to it.
13) Can I add the Omnia Colonial deadbolt above a knob or lever I already have?
That is exactly what it is for. The COLDB is an auxiliary deadbolt that goes in its own bore above the existing latch set and does not replace it. Order the backset and door thickness to match the door, and match the finish to the knob below it out of the eleven Omnia offers.
14) Does the Omnia Colonial deadbolt have an adjustable backset like the builder-grade ones?
No. Backset is fixed by which one you order, 2-3/8 or 2-3/4 inch. If you are doing a batch of doors and are not sure how each one is bored, an adjustable-backset unit saves you a return: the Brinks Raleigh Series round and Mendocino Series square deadbolts both have a 4-way adjustable backset, and the Cal-Royal ED500 and Falcon D111 also list adjustable backset.
15) What do I have to specify when ordering the Omnia COLDB Colonial deadbolt?
Three things: backset (2-3/8 or 2-3/4 inch), door thickness (1-3/8 or 1-3/4 inch), and finish from the eleven Omnia offers. Get the backset and thickness from the door itself, and the finish from whatever hardware is already on it.
16) Is there a simpler single cylinder deadbolt than the Omnia COLDB for rental units where the finish does not matter?
The Dexter DB2000 single cylinder is a Grade 2 cylinder x thumbturn deadbolt for doors 1-3/8 to 1-3/4 inch. The Cal-Royal ED500 is Grade 3 with an adjustable backset over the same 1-3/8 to 1-3/4 inch range, which means one part covers both the 2-3/8 and 2-3/4 inch backsets the Omnia COLDB splits across separate items. The Brinks Raleigh Series is a transitional round single cylinder deadbolt with a 4-way adjustable backset. The Omnia COLDB is solid brass with colonial trim in eleven finishes.
17) Is the Arrow 460 strike a substitute for the Omnia COLDB deadbolt?
No. The Arrow 460 is a mortise lock strike with latchbolt and deadbolt cutouts and a straight lip - it is the frame-side plate the bolt throws into, not a lock. The Omnia COLDB is the deadbolt itself, cylinder outside and turnpiece inside. Likewise the BEST 8T is a tubular deadbolt tube component from the T Series, a piece of a lock rather than a complete one, and the Baldwin 8BR0618001 is a deadbolt spacer.
18) I want keypad or electronic entry instead of a keyed deadbolt like the Omnia COLDB - what are the options?
The Delaney KP400 is a Grade 2 electronic deadbolt with a programmable remote. The Codelocks CL2200 is a medium duty electronic surface deadbolt in a brushed steel finish, and the CL2210 is an electronic mortise deadbolt. For multihousing, the Dormakaba Nova-D is an RFID smart electronic deadbolt and the Saffire LX-D adds BLE with electronic lock override. All of these replace the key at the door, where the Omnia COLDB is keyed outside with a turnpiece inside.
19) The Omnia COLDB is a round colonial rose - what deadbolts give a square or contemporary trim on the same kind of door?
The Bravura 310SC Elite is a Grade 2 contemporary square deadbolt and the 310RC Elite is the contemporary round version, both cylinder x thumbturn like the Omnia COLDB. The Bravura 910005 is a Grade 2 rectangle single cylinder deadbolt. The Brinks Mendocino Series is a contemporary square single cylinder deadbolt with a 4-way adjustable backset, and the Callan 200S is a Grade 3 single cylinder square trim deadbolt.
20) What if I only want a thumbturn on the inside with no key cylinder at all, instead of the Omnia COLDB?
The Arrow E60 is a Grade 2 exit deadlock in a blank plate x thumbturn configuration for doors 1-3/8 to 1-3/4 inch, so the outside face carries no cylinder. The Callan 205S is a Grade 3 one-sided half-bore deadbolt, which bores only one face of the door. The Omnia COLDB is keyed on the exterior with the turnpiece inside.
21) The door needs a mortise deadbolt rather than a bored one like the Omnia COLDB - what fits?
The Omnia COLDB is a bored deadbolt installed through a cross bore in the door face. For a mortise pocket, the Emtek 2050 and 2051 are European mortise deadbolts with an integrated roller latch in square and round trim, both cylinder x thumbturn. The Dormakaba D900 is a small case mortise deadbolt with a D cylinder, keyed different with SC keyways, also cylinder x thumbturn.
22) I need a period-correct deadbolt for a historic house restoration. What are my options in cast brass or bronze?
The Omnia Colonial COLDB is a solid brass round rose deadbolt, 2-1/2 inch diameter, and the unlacquered polished brass and unlacquered antique bronze finishes are the traditional choice on an old door because they patina rather than staying showroom bright. If you want cast bronze rather than brass, the Emtek #11 Tuscany is a lost wax cast bronze deadbolt with the same key outside, turn inside function.
How fast can I get the Omnia COLDBA34.34.5 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 COLDBA34.34.5 come with a warranty?
Absolutely. The Omnia COLDBA34.34.5 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 COLDBA34.34.5?
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
Why buy the Omnia COLDBA34.34.5 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!