Arrow 112 Deadlatch for MK Ser...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$33.08
Image coming soon

Arrow 112 Deadlatch for MK Series Locks with 2-3/4" Backset and 2-1/4" x 1" Square Corner Face

(No reviews yet) Write a Review

Model: 112 26D

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

$33.08
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

Arrow 112 Deadlatch for MK Series Locks with 2-3/4" Backset and 2-1/4" x 1" Square Corner Face

The Arrow 112 Deadlatch is a precision-engineered replacement component designed specifically for the Arrow MK Series lockset family. Featuring a 2-3/4" backset and a 2-1/4" x 1" face plate with a square corner profile, this deadlatch delivers a precise, manufacturer-matched fit for commercial door hardware applications. Finished in Bright Brass, it maintains a consistent, professional appearance when used in conjunction with existing MK Series hardware.

Key Features

  • Precise Backset Dimension: 2-3/4" backset ensures accurate alignment and drop-in compatibility with MK Series locksets for reliable latch engagement.
  • Defined Face Plate Dimensions: 2-1/4" x 1" face plate provides a clean, flush door installation with no gaps or misalignment.
  • Square Corner Face Profile: Square corner configuration matches standard commercial door preparations, simplifying replacement without additional door modification.
  • Bright Brass Finish: Consistent Bright Brass finish integrates seamlessly with existing MK Series hardware for a uniform appearance.
  • MK Series Compatibility: Engineered as a genuine Arrow replacement part, purpose-built for MK Series locksets to maintain original performance and function.
  • Commercial-Grade Construction: Built to commercial door hardware standards for durable, dependable latch operation in high-use environments.

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: 112
  • Features: Arrow Parts

Typical Applications

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

Why Arrow 112?

Arrow 112 Deadlatch components are purpose-built as genuine replacement parts for MK Series locksets, ensuring proper fit and function without the guesswork of aftermarket alternatives. With a 2-3/4" backset and a precisely dimensioned 2-1/4" x 1" square corner face, this deadlatch delivers the exacting tolerances required for dependable commercial door hardware performance in demanding, high-traffic 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:
112
Features:
Arrow Parts

Arrow 112 26D – Frequently Asked Questions

1) Will the Arrow 112 deadlatch fit a door already bored for a 2-3/4 inch backset?
Yes. The Arrow 112 is built to a 2-3/4 inch backset, which is the standard commercial backset, so it drops into an existing MK Series prep without redrilling the cross bore. If your doors are bored at 2-3/8 inches, this is the wrong latch for that opening.
2) Does the Arrow 112 latch have a square corner or radius corner faceplate?
Square corner. The face measures 2-1/4 x 1 inches with a square corner profile, so it matches a door mortised flat at the corners. A door prepped for a radius (round) corner faceplate will show gaps at the corners unless the mortise is squared up.
3) Which Arrow locksets does the 112 deadlatch replace the latch on?
The 112 is the genuine Arrow replacement deadlatch for the MK Series lockset family. It is sold as a service part for those locks, not as a universal tubular latch, so pair it with MK Series hardware rather than trying to fit it to another manufacturer's lock.
4) Will the Arrow 112 latch work with the strike already in my frame?
In most cases yes, because the backset and faceplate size are unchanged from the original MK Series latch, so the bolt lands in the same place in the jamb. What matters is the strike lip: a deadlatch needs the auxiliary plunger to land on the strike face, not drop into the strike opening. If the existing strike hole is oversized, the plunger will fall in and the deadlatching feature will not work.
5) I need a 2-3/4 inch backset latch for a residential door of unknown thickness - is the Arrow 112 the right pick?
The Arrow 112 is a commercial replacement part matched to Arrow MK Series locksets at a 2-3/4 inch backset. For a non-MK residential door, the Deltana DLP23875 is a drive-in latch with an adjustable backset of 2-3/8 inch or 2-3/4 inch and a door thickness range of 1-3/8 inch to 2 inch in a passage/privacy function, and the Deltana DLE23875 is the entry-function drive-in latch covering the same 1-3/8 inch to 2 inch thickness range. Those adjust to the opening; the Arrow 112 is a fixed-dimension match to MK hardware.
6) What is the difference between the Arrow 112 deadlatch and a Kwikset 84290 square corner plainlatch?
Both use a square corner face, but they are different parts for different openings. The Arrow 112 is a deadlatch built for Arrow MK Series locksets with a 2-3/4 inch backset and a 2-1/4 inch by 1 inch face. The Kwikset 84290 is a plainlatch with a 2-3/8 inch backset. A deadlatch has the auxiliary deadlocking plunger a plainlatch does not, so on an MK Series lever prepped for 2-3/4 inch backset the 84290 is not a fit on backset or on latch type.
7) What finishes does the Arrow 112 deadlatch come in for matching the rest of my door hardware?
Four finishes: 605 Bright Brass, 612 Satin Bronze, 613 Satin Bronze Oil-Rubbed, and 626 Satin Chrome. If you are standardizing a building, order the latch in the same BHMA number as the lever trim already on the openings so the exposed faceplate matches.
8) What is a deadlatch and do I need one instead of a plain latch?
A deadlatch carries a small auxiliary plunger alongside the main latchbolt. When the door closes, the plunger rides the strike lip and blocks the latchbolt from being pushed back, which defeats carding or shimming. A plain latch has no plunger and gives no such protection. The Arrow 112 is the deadlatch version for MK Series locks, intended for commercial exterior and tenant entry doors. The comparable Kwikset 84290 is a plain latch by contrast.
9) Does the Arrow 112 work on a fire rated door, or do I need a UL listed latch?
The Arrow 112 is a genuine Arrow replacement deadlatch for MK Series locksets in commercial buildings, matched by its 2-3/4 inch backset and 2-1/4 inch by 1 inch square corner face. If the opening requires a latch carrying a UL fire listing, the Kwikset 83521 RCAL plain latch is UL 3 hour for BBL, KNL, CNL and PLL locksets, and the Kwikset 83518 RCAL adjustable square drive latch is also UL 3 hour. Note those are Kwikset latches for Kwikset locks, not MK Series parts.
10) Can I use the Arrow 112 on a pocket door privacy latch or a deadbolt?
No. The Arrow 112 is a deadlatch for Arrow MK Series locksets with a 2-3/4 inch backset. For a tubular pocket door privacy latch, the Emtek 83228 is a square corner faceplate and screw set for that privacy/bed/bath application. For a motorized deadbolt latch, the Emtek LC9-DBLTCH is an EMPowered deadbolt latch. Those are separate mechanisms and none of the three interchange.
11) My existing latch is a drive-in with no faceplate screws - will the Arrow 112 drop in?
The Arrow 112 has a 2-1/4 inch by 1 inch square corner face plate that mounts flush in a standard commercial square corner door prep, so it suits a door already prepped for a faceplate. A drive-in latch such as the Deltana DLE23875 entry latch or DLP23875 passage/privacy latch installs without that faceplate mortise and covers 1-3/8 inch to 2 inch door thickness. If the edge of the door has no square faceplate mortise, a drive-in latch is the matching style.
12) Is the Arrow 112 deadlatch suitable for high traffic commercial doors?
It is a commercial-rated part, built for MK Series locks in offices, schools, healthcare, retail, warehouse, multi-tenant residential and municipal buildings. It is not a residential drive-in latch.
13) I am standardizing latch finishes across a building - how does the Arrow 112 compare to the Kwikset and Emtek latch parts on finish choice?
The Arrow 112 deadlatch is offered in 605 Bright Brass, 612 Satin Bronze, 613 Satin Bronze Oil-Rubbed and 626 Satin Chrome, so you can match the latch face to existing MK Series trim across a facility. The Kwikset 84290 square corner plainlatch and the Kwikset 83521 RCAL plain latch are catalogued as single-configuration latch parts, and the Emtek 83228 is sold as a faceplate and screw set for pocket door privacy latches. For a facility standardizing on MK Series openings, the Arrow 112 finish range is what keeps the visible faces consistent.
How fast can I get the Arrow 112 26D 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 Arrow 112 26D come with a warranty?
Absolutely. The Arrow 112 26D 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 Arrow 112 26D?
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 Arrow 112 26D 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.
!