Don-Jo DT9115 Extended Lip Dim...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$25.73
Don-Jo DT9115 Extended Lip Dimple T-Strike, 2-3/4" x 1-1/2"

Don-Jo DT9115 Extended Lip Dimple T-Strike, 2-3/4" x 1-1/2"

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Model: DT9115-622
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$25.73
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Don-Jo DT9115 Extended Lip Dimple T-Strike, 2-3/4" x 1-1/2"

The Don-Jo DT9115 is a commercial-grade Extended Lip Dimple T-Strike designed to provide reliable latching performance in a wide range of door hardware applications. Measuring 2-3/4" in height and 1-1/2" in width — with the width measured from the center of the screw hole to the end of the lip — this strike features a dimple latch hole configuration and is constructed from 18-gauge (.050) steel for durable, long-lasting performance. Available in multiple finishes including DU, 605, 622, and 630, the DT9115 is a versatile solution for commercial door installations.

Key Features

  • Precise Dimensions: Measures 2-3/4" in height and 1-1/2" in width (measured from center of screw hole to end of lip) for accurate, code-compliant installation.
  • Extended Lip Design: Extended lip configuration provides enhanced latch engagement and improved door security in commercial applications.
  • Dimple T-Strike Configuration: Features a dimple-style latch hole for reliable latch capture and smooth operation with compatible locksets.
  • Heavy-Gauge Steel Construction: Built from 18-gauge (.050) steel for exceptional strength and durability in demanding commercial environments.
  • Multiple Finish Options: Available in DU, 605, 622, and 630 finishes to coordinate with a variety of door hardware and architectural styles.
  • Convenient Shelf Pack Quantity: Sold in shelf packs of 10, making it easy to stock for multi-door projects or ongoing maintenance needs.

Technical Specifications

  • Subcategory: Door Strikes
  • Product Group: Parts and Accessories
  • Product Subgroup: Door Strikes and Strike Boxes
  • Product Type: Door Strikes
  • Commercial/Residential: Commercial
  • Product Category: Parts and Accessories
  • Department: Door Hardware

Typical Applications

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

Why Don-Jo DT9115?

Don-Jo DT9115 door strikes are engineered for commercial-grade performance, combining 18-gauge (.050) steel construction with a practical extended lip dimple T-strike design that ensures dependable latch engagement across a variety of door configurations. With multiple finish options and a convenient shelf pack of 10, the DT9115 is a reliable, professional choice for contractors and facility managers seeking consistent quality in door hardware components.

Manufacturer Resources

DON-JO Strike Plates

Product Specs

Subcategory:
Door Strikes
Product Group:
Parts and Accessories
Product Subgroup:
Door Strikes and Strike Boxes
Product Type:
Door Strikes
Commercial/Residential:
Commercial
Product Model:
DT9115
Door Strike:
Extended Lip Dimple T-Strike
Product Category:
Parts and Accessories
Department:
Door Hardware

Don-Jo DT9115-622 – Frequently Asked Questions

1) Will the Don-Jo DT9115 T-strike cover the old strike cutout on my commercial door frame?
The DT9115 T-strike face measures 2-3/4 inches, with 1-1/2 inches taken from the center of the screw hole out to the end of the lip. A standard commercial ANSI T-strike prep is 2-3/4 inches tall, so the face lines up with that prep. What the extended lip buys you is reach across the gap between the frame and the door face, which is where a short-lip strike leaves the latch dragging on the stop.
2) Can I use a Don-Jo DT9115 T-strike on a pair of doors with no mullion?
No. The DT9115 mounts in the frame jamb and catches a latchbolt, so it needs a jamb or a mullion to land on. On a pair of doors where the active leaf latches into the inactive leaf, you need a strike built for that condition. The Detex 92 Strike Kit from the 90 Strike Series is a double door strike kit and comes with tamper resistant fasteners.
3) My frame is a round pipe or tube post. Will a flat T-strike like the DT9115 work?
It won't sit flat. The DT9115 is a flat-faced frame strike and needs a flat jamb face to seat against and screw into. For a round pipe or tubular post, the Trimco 1260P Pipe Adapter Strike from the 1260 Series is the part shaped for that condition.
4) Can a Detex 92 strike kit be used in place of a Don-Jo DT9115 T-strike on a standard latch opening?
No - they solve different problems. The Don-Jo DT9115 is an extended lip dimple T-strike, a single 18-gauge (.050) steel strike plate 2-3/4 inches high by 1-1/2 inches wide that mounts in the frame to capture a latch. The Detex 92 Strike Kit is a double door strike kit supplied with tamper resistant fasteners from the Detex 90 Strike Series, intended for a double door application rather than a single latch prep in a frame. If the opening is a single door with a conventional latch, the DT9115 is the T-strike form factor for it; the Detex kit does not replace a T-strike in that prep.
5) What is the difference between a Don-Jo DT9115 T-strike and a Trimco 1260P pipe adapter strike?
The Don-Jo DT9115 is a commercial extended lip dimple T-strike in 18-gauge (.050) steel, 2-3/4 inches high and 1-1/2 inches wide with the width taken from the center of the screw hole to the end of the lip, and it mounts in a door frame to receive a latch. The Trimco 1260P from the Trimco 1260 Series is a pipe adapter strike supplied as the strike only, which is what you use when the latch has to engage a pipe or tube rather than a prepped frame jamb. Choose by what the latch is landing in: a framed jamb prep takes the DT9115 form, a pipe takes the pipe adapter strike.
6) What does the dimple on a Don-Jo DT9115 strike actually do?
The dimple is a shallow depression formed into the latch hole area of the strike. It catches the latchbolt and helps hold the door pulled up tight, so the door doesn't rattle in the frame and the latch seats cleanly instead of resting loose in the cutout. On a cylindrical lockset that is the difference between a door that closes quietly and one that a tenant complains about.
7) Is 18-gauge steel heavy enough for a school or apartment entry strike?
18-gauge (.050) steel is the working thickness for commercial strikes and is what the DT9115 is made from. It holds its shape under repeated latching in traffic doors, which is where a thin residential strike deforms around the latch hole and starts to hang up. Don-Jo builds it for commercial use, and the typical spots are offices, schools, healthcare, retail, warehouses, multi-tenant residential, and municipal buildings.
8) What finishes does the Don-Jo DT9115 come in, and which one matches my existing lever sets?
Four finishes: 605 polished brass, 622 matte black, 630 satin stainless steel, and DU duronodic brown coated. 630 is the one to pick if your building is running standard satin stainless commercial hardware, since that is the most common commercial lever finish. DU matches the older bronze-anodized aluminum storefront and entry hardware you find on 1970s-90s buildings, which nothing in a brass or stainless family will blend with.
9) I need a tamper resistant strike for a pair of doors - is the Don-Jo DT9115 the right call?
For a pair of doors where fastener tampering is the concern, the Detex 92 Strike Kit is the double door strike kit and it ships with tamper resistant fasteners as part of the 90 Strike Series. The Don-Jo DT9115 is an extended lip dimple T-strike for commercial openings, built from 18-gauge (.050) steel and offered in 605 polished brass, 622 matte black, 630 satin stainless steel, and DU duronodic brown coated, with the extended lip giving added latch engagement. Use the DT9115 where you are replacing or specifying a frame-mounted T-strike and want finish coordination across the doors; use the Detex kit where the double door strike and tamper resistant fasteners are the requirement.
10) I only need one strike. Does the DT9115 come as a single piece?
The DT9115 is packed in shelf packs of 10. That works in your favour if you are standardizing strikes across a floor or keeping a maintenance stock, and it is worth knowing up front if you are chasing a single door repair.
11) Is the Don-Jo DT9115 a strike plate or a strike box?
It is the strike plate itself, the visible piece the latch hits. A strike box is the separate metal cup that sits behind the plate inside the frame cavity to catch the latch and keep debris out. If your frame has no existing box and you need one, that is a separate part to order alongside it.
How fast can I get the Don-Jo DT9115-622 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 Don-Jo DT9115-622 come with a warranty?
Absolutely. The Don-Jo DT9115-622 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 Don-Jo DT9115-622?
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 Don-Jo DT9115-622 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.
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