Dormakaba 91453 Deadlatch Back...
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$77.00
$58.33
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Dormakaba 91453 Deadlatch Backset for 230 and 240 Locks with 1/2" Throw and 2-1/4" Square Corner Front

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Model: 91461 605
$77.00
$58.33

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

$77.00
$58.33
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Dormakaba 91453 Deadlatch Backset for 230 and 240 Locks with 1/2" Throw and 2-1/4" Square Corner Front

The Dormakaba 91453 is a replacement deadlatch backset engineered specifically for use with Dormakaba 230 and 240 Series locks. Featuring a 1/2" throw and a 2-1/4" square corner front, this precision-manufactured latch component is designed for seamless integration into compatible commercial lock assemblies. Classified as a commercial-grade replacement part, the 91453 restores reliable latching performance and maintains the operational integrity of your existing Dormakaba lock hardware.

Key Features

  • Precise Throw Dimension: 1/2" throw delivers consistent and reliable latching engagement for compatible Dormakaba lock applications.
  • Defined Front Plate Size: 2-1/4" square corner front plate ensures proper fit and clean alignment within the door preparation.
  • Square Corner Front: Square corner configuration provides a professional finish and accurate positioning within standard door preparations.
  • Targeted Lock Compatibility: Designed specifically for Dormakaba 230 and 240 Series locks, ensuring correct mechanical fit and function.
  • Commercial-Grade Replacement Part: Built to commercial standards as a genuine Dormakaba replacement component, maintaining the performance level of the original assembly.
  • Direct Drop-In Replacement: Engineered as a backset replacement to restore latching function without requiring full lock replacement.

Technical Specifications

  • Department: Door Hardware
  • Product Category: Mechanical Locks
  • Product Group: Parts and Accessories
  • Subcategory: Parts and Accessories
  • Product Subgroup: Parts and Accessories
  • Product Type: Latches
  • Parts and Accessories Type: Replacement Parts
  • Commercial/Residential: Commercial
  • Product Model: 91453
  • Features: Dorma Parts & Accessories

Typical Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Dormakaba 91453?

Dormakaba replacement parts like the 91453 deadlatch backset are manufactured to the same exacting standards as the original lock components, ensuring proper mechanical fit and reliable performance within 230 and 240 Series lock assemblies. With a defined 1/2" throw and a 2-1/4" square corner front, this component delivers the dimensional accuracy that commercial door hardware demands. Choosing a genuine Dormakaba replacement part ensures long-term durability and operational consistency for high-demand commercial environments.

Manufacturer Resources

Product Specs

Department:
Door Hardware
Product Category:
Mechanical Locks
Product Group:
Parts and Accessories
Subcategory:
Parts and Accessories
Product Subgroup:
Parts and Accessories
Product Type:
Latches
Parts and Accessories Type:
Replacement Parts
Commercial/Residential:
Commercial
Product Model:
91453
Features:
Dorma Parts & Accessories

Dormakaba 91461 605 – Frequently Asked Questions

1) Will the Dormakaba 91453 deadlatch work with my 230 or 240 Series lock?
That's exactly what it's built for. The 91453 is the replacement deadlatch for Dormakaba 230 and 240 Series locks, with a 1/2 inch throw and a 2-1/4 inch square corner front. Because it's the genuine Dormakaba part for those two series, the tailpiece engagement and front dimensions match the original assembly, so you replace the latch rather than the whole lock. It is not intended for other lock series.
2) What backset do I order for a Dormakaba 91453 deadlatch, 2-3/8 or 2-3/4 inch?
Both backsets are made: 2-3/8 inch and 2-3/4 inch. Measure from the door edge to the center of the bore hole on the door you're working on and match it. Getting this wrong means the latch case won't line up with the lock body, so confirm the existing prep before you order.
3) Will a 1/2 inch throw deadlatch latch into my existing strike?
A 1/2 inch throw is the standard cylindrical latch projection, so it engages a normal commercial strike lip and ANSI strike pocket without changing the frame prep. Since the 91453 carries the same 1/2 inch throw as the original latch in a 230 or 240 Series lock, the existing strike stays as is.
4) My door has a square corner latch cutout. Is the 91453 front the right shape?
It is. The 91453 comes with a 2-1/4 inch square corner front, which drops into a square-cut mortise in the door edge. If your existing prep has radius (round) corners, a square corner face will sit in the pocket but leave visible gaps at the corners, so match the corner style to the door.
5) Is there a square corner latch that works in a door already prepped for a Kwikset residential lock instead of the Dormakaba 91453?
No. The Dormakaba 91453 deadlatch is built specifically for Dormakaba 230 and 240 Series locks, so its fit is tied to that lock chassis rather than to a generic door prep. If the opening carries a Kwikset residential cylindrical lock, the Kwikset 84290 is a square corner plainlatch with a 2-3/8 inch backset and a UL listing, and the Kwikset 83521 RCAL plain latch is the UL 3 hour latch for the BBL, KNL, CNL and PLL trim families. Those serve Kwikset locks; they are not a replacement inside a 230 or 240 lock body.
6) What is the difference between the Dormakaba 91453 deadlatch and an adjustable drive-in latch like the Deltana DLE23875?
Two different installation styles and two different roles. The 91453 is a deadlatch with a 1/2 inch throw and a 2-1/4 inch square corner front plate, ordered in a fixed 2-3/8 inch or 2-3/4 inch backset and matched to Dormakaba 230 and 240 Series locks. The Deltana DLE23875 is a drive-in latch, meaning no face plate is mortised into the door edge, and it is an entry function latch rated for doors 1-3/8 inch to 2 inch thick. Deltana also lists the DLP23875 as a drive-in latch with an adjustable 2-3/8 inch or 2-3/4 inch backset in a passage/privacy function. Pick the 91453 when the lock body is Dormakaba; pick the drive-in when the door edge has a round bore and no plate mortise.
7) Does the pin depth on the Dormakaba 91453 change with the backset?
Yes, and the two are paired. The 2-3/8 inch backset latch comes with a 1 inch pin depth; the 2-3/4 inch backset comes with 1-1/8 inch. You don't choose pin depth separately, it follows the backset you select.
8) Do I have to replace the whole lock if the latch on my Dorma 230 is sticking?
No. The 91453 is sold as a backset replacement so you can restore latching function without pulling and replacing the complete lockset. Keep the existing lock body, trim and strike, and swap the latch in the matching backset and finish.
9) I need a square corner latch part for a pocket door privacy set - will the Dormakaba 91453 work?
No. The 91453 is a deadlatch for Dormakaba 230 and 240 Series cylindrical lock bodies and has a 2-1/4 inch square corner front with a 1/2 inch throw. A tubular pocket door privacy latch takes its own square corner face plate; Emtek lists the 83228 faceplate and screws for a tubular pocket door privacy latch with square corners for that application. Square corners on both parts do not make them interchangeable, because the latch mechanism behind the plate is different.
10) Is the Dormakaba 91453 a deadbolt latch?
No. It is a deadlatch, the spring latch component with a 1/2 inch throw that sits inside a Dormakaba 230 or 240 Series lock and is deadlocking against end pressure. A deadbolt latch is a separate device driven by a thumbturn, key or motor; the Emtek LC9-DBLTCH EMPowered motorized deadbolt latch is an example of that category. Buyers replacing a worn latch in a 230 or 240 lock want the 91453; buyers adding bolt security to the door want a deadbolt.
11) What finishes does the Dormakaba 91453 deadlatch come in?
Five: 605 Bright Brass, 606 Satin Brass, 612 Satin Bronze, 613 Oil Rubbed Bronze, and 630 Satin Stainless. All five are available in either backset, so you can match the latch front to the lock trim on the rest of your openings.
How fast can I get the Dormakaba 91461 605 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 Dormakaba 91461 605 come with a warranty?
Absolutely. The Dormakaba 91461 605 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 Dormakaba 91461 605?
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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