Don-Jo DT9175 Extended Lip Dim...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$8.10
$6.93
Don-Jo DT9175 Extended Lip Dimple T-Strike, 2-3/4" x 1-3/4" | Commercial Door Strike

Don-Jo DT9175 Extended Lip Dimple T-Strike, 2-3/4" x 1-3/4" | Commercial Door Strike

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Model: DT9175-630
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$8.10
$6.93
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Don-Jo DT9175 Extended Lip Dimple T-Strike — 2-3/4" x 1-3/4" Commercial Door Strike

The Don-Jo DT9175 is a commercial-grade Extended Lip Dimple T-Strike designed to provide reliable latch engagement for a wide range of door hardware applications. Measuring 2-3/4" in height and 1-3/4" in width — with the width measured from the center of the screw hole to the end of the lip — this strike plate delivers a precise, secure fit. Constructed from 18-gauge (.050) steel, the DT9175 features a dimple latch hole configuration and is available in multiple finishes including DU, 605, 622, and 630 to complement existing door hardware. Sold in a shelf pack of 10, it is well-suited for commercial installation projects requiring consistent, professional-grade components.

Key Features

  • Precise Dimensions: Measures 2-3/4" (height) x 1-3/4" (width), with width measured from the center of the screw hole to the end of the extended lip for accurate installation.
  • Extended Lip Design: The extended lip configuration provides enhanced latch engagement and added door security for commercial door applications.
  • Dimple Latch Hole: Features a dimple-style latch hole for smooth, reliable latch operation and reduced wear over time.
  • Heavy-Gauge Construction: Manufactured from 18-gauge (.050) steel for durable, long-lasting performance in demanding commercial environments.
  • Multiple Finish Options: Available in DU, 605, 622, and 630 finishes to coordinate with a variety of door hardware styles and aesthetics.
  • Convenient Shelf Pack: Sold in packs of 10, making this strike ideal for contractors and facilities managers handling multiple door installations or replacements.
  • Commercial Grade: Engineered for commercial applications where consistent performance and professional-quality components are required.

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 DT9175?

Don-Jo DT9175 door strike components are built to commercial-grade standards, featuring 18-gauge (.050) steel construction that delivers dependable durability across high-traffic door applications. With an extended lip dimple T-strike design, precise 2-3/4" x 1-3/4" dimensions, and a choice of four finishes, the DT9175 provides the versatility and reliability that professional installers and facility managers demand.

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:
DT9175
Door Strike:
Extended Lip Dimple T-Strike
Product Category:
Parts and Accessories
Department:
Door Hardware

Don-Jo DT9175-630 – Frequently Asked Questions

1) What size is the Don-Jo DT9175 T-strike, and how is the 1-3/4 inch width measured?
The DT9175 measures 2-3/4 inches in height by 1-3/4 inches in width, and the width is taken from the center of the screw hole to the end of the extended lip, not edge to edge across the plate. That matters when you are laying it against an existing frame cutout: the lip wraps past the screw line, so the flat portion sitting in the frame prep is narrower than the 1-3/4 inch figure suggests. Measure your existing strike the same way before you assume it drops in.
2) Is the Don-Jo DT9175 sold individually or in a pack?
It ships as a shelf pack of 10 strikes. If you are re-striking a floor of offices or standardizing a building's openings, that works in your favor. If you need one strike for one door, you are still buying ten, so plan the order around a batch of doors rather than a single service call.
3) Will the DT9175 work on a pair of doors with no mullion?
No. The DT9175 is a single frame-mounted strike plate for a latch entering a jamb, so it needs a frame or a mullion to fasten to. For a pair of doors where the strike has to mount to the inactive leaf or to a removable mullion, look at a purpose-built double-door strike such as the Detex 92 Strike Kit from the 90 Strike Series, which is made for the double-door condition and comes with tamper resistant fasteners.
4) Is the Detex 92 strike kit an equivalent replacement for a Don-Jo DT9175 T-strike?
No - they solve different openings. The Don-Jo DT9175 is an extended lip dimple T-strike measuring 2-3/4 inches high by 1-3/4 inches wide, with the width taken from the center of the screw hole to the end of the lip, formed in 18-gauge (.050) steel for latch engagement on a standard single door frame. The Detex 92 Strike Kit is part of the Detex 90 Strike Series and is built for a double door application, supplied with tamper resistant fasteners. If the opening is a pair of doors where the strike lands on the inactive leaf rather than the frame, the Detex 92 kit is the one to specify; for a single door frame prep taking a T-strike, stay with the DT9175.
5) What strike should I use if the latch has to catch on a round pipe or tube frame instead of a flat jamb?
The Don-Jo DT9175 is a flat T-strike with an extended lip, sized 2-3/4 inches by 1-3/4 inches in 18-gauge steel, and it is meant to sit against a flat frame face. For a round pipe or tube section, the Trimco 1260P from the Trimco 1260 Series is a pipe adapter strike, sold as the strike only, and it is the part shaped to adapt a latch to that condition. Locksmiths and glass front installers hitting a tube frame should be looking at the 1260P; the DT9175 stays with conventional flat jamb preps.
6) What does the extended lip on a Don-Jo T-strike actually do for me?
An extended lip carries the strike face out past the frame so the latch rides up onto the lip instead of catching on the jamb edge or the casing. You need it where the door is set back from the frame face, where a thick stop or applied trim would otherwise leave the latch striking wood, or where the frame has been shimmed. If your latch already engages cleanly on a flush strike, the extended lip buys you nothing and can leave a lip edge proud in the opening.
7) What is a dimple T-strike and why would I pick it over a plain strike plate?
The dimple refers to the latch hole configuration on the DT9175: the hole is formed with a dimpled edge rather than a plain punched opening, which gives the latch a lead-in to ride against as the door closes. Trade buyers use these on doors that have settled slightly or where the latch is contacting the hole edge and wearing a bright spot. It is a strike plate only, so it replaces the frame-side hardware and nothing on the door.
8) How thick is the steel on the Don-Jo DT9175 strike?
18-gauge steel, .050 inch thick. That is the reason it holds up in a corridor or an entry that cycles all day: the latch hole edge is where a thin strike deforms first, and .050 stock resists the elongation that eventually stops a latch from throwing fully. For an office suite, a school corridor, or a warehouse door, this is the gauge you want under the latch.
9) What finishes does the Don-Jo DT9175 T-strike come in?
Four: 605 polished brass, 622 matte black, 630 satin stainless steel, and DU duronodic brown coated. For matching a building's existing openings, 630 is the usual commercial standard and pairs with satin stainless lever trim, 605 goes with bright brass, and DU is the dark bronze-toned coating that matches older aluminum storefront and anodized bronze hardware. All four cover the same 2-3/4 by 1-3/4 inch strike.
10) I need a strike for a pipe or round post frame, not a flat jamb. Is this the right one?
Not for a round post. The DT9175 is a flat plate that screws to a flat frame face. Where the strike has to land on pipe, the Trimco 1260P pipe adapter strike is built for that condition and is supplied as the strike only.
11) For a facility standardizing strikes across many doors, how do the Don-Jo DT9175 and the Detex 92 differ in what you get and how it fastens?
The Don-Jo DT9175 is a single strike plate in 18-gauge (.050) steel, offered in DU Duronodic brown coated, 605 polished brass, 622 matte black, and 630 satin stainless steel, and it comes in a shelf pack of 10 - which is how a property manager or MRO buyer rolls one strike across a run of doors in a matching finish. The Detex 92 Strike Kit is a kit in the Detex 90 Strike Series for a double door and ships with tamper resistant fasteners, so the fastening is intended to resist removal at the opening. Match the DT9175 where the standard is a single door frame in one of those four finishes, and carry the Detex 92 kit for the paired openings in the same facility.
12) Is the Don-Jo DT9175 rated for commercial use or is it a residential part?
Commercial. Don-Jo builds the DT9175 for commercial openings, and it turns up in office buildings, schools, hospitals, retail, warehouses, multi-tenant residential, and municipal facilities. The 18-gauge steel body is what carries it there rather than the light-gauge stock on a residential strike.
13) Do I need to order a separate strike box or dust box with the DT9175?
The DT9175 is the strike plate itself, model DT9175 in the Don-Jo line. If your frame prep already has a pocket or box behind the latch hole, the plate covers it. If you are cutting into a frame that has no cavity behind the latch, you need a box behind the plate, which is a separate item from the strike.
How fast can I get the Don-Jo DT9175-630 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 DT9175-630 come with a warranty?
Absolutely. The Don-Jo DT9175-630 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 DT9175-630?
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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