Don-Jo 9175-RC Extended Lip St...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$10.96
Don-Jo 9175-RC Extended Lip Strike with Radius Corner, 2-1/4" x 1-3/4", 18 Gauge

Don-Jo 9175-RC Extended Lip Strike with Radius Corner, 2-1/4" x 1-3/4", 18 Gauge

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Model: 9175-630-RC
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$10.96
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Don-Jo 9175-RC Extended Lip Strike with Radius Corner, 2-1/4" x 1-3/4", 18 Gauge

The Don-Jo 9175-RC is a commercial-grade Extended Lip Strike featuring a radius corner design, measuring 2-1/4" 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. Constructed from heavy-duty 18-gauge steel (.050), this door strike is engineered for reliable performance in demanding commercial door hardware applications. It accommodates a single latch hole and is available in a wide selection of finishes to match virtually any door hardware specification.

Key Features

  • Precise Dimensions: Measures 2-1/4" (height) x 1-3/4" (width), with width measured from the center of the screw hole to the end of the lip for accurate installation alignment.
  • Heavy-Duty 18-Gauge Construction: Fabricated from 18-gauge (.050) steel for durable, long-lasting performance in high-traffic commercial environments.
  • Radius Corner Design: Smooth radius corner profile provides a clean, professional appearance and reduces sharp edges for safer handling and installation.
  • Extended Lip Configuration: Extended lip design provides additional latch engagement depth, improving door security and latch retention.
  • Single Latch Hole: Features one latch hole, compatible with standard single-latch door hardware configurations.
  • Multiple Finish Options: Available in finishes DU, 605, 609, 619, 622, 629, and 630 to coordinate with a wide range of door hardware and architectural styles.
  • Convenient Shelf Pack Quantity: Sold in shelf packs of 10, making it easy to stock for commercial projects and multi-door installations.

Certifications & Compliance

  • Commercial-Grade Construction
  • 18-Gauge (.050) Steel Fabrication Standard

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 9175-RC?

Don-Jo door strike products are built to commercial-grade standards, with the 9175-RC delivering dependable latch retention through its 18-gauge (.050) steel construction and extended lip design. Engineered for professional door hardware applications, this strike offers a precise 2-1/4" x 1-3/4" profile with a radius corner finish, making it a reliable and versatile choice for contractors and facility managers across a broad range of commercial installations.

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:
9175 RC
Door Strike:
Extended Lip Strike
Product Category:
Parts and Accessories
Department:
Door Hardware

Don-Jo 9175-630-RC – Frequently Asked Questions

1) Will the Don-Jo 9175-RC extended lip strike cover the old mortise cut when I swap a strike on a metal frame?
The 9175-RC measures 2-1/4 inches in height by 1-3/4 inches in width, and that width is measured from the center of the screw hole out to the end of the lip, not overall face width. So the lip reach past the screw line is what you are buying here. Measure from your existing screw hole center to where the lip needs to land on the frame face or stop; if that distance is at or under 1-3/4 inches, this one reaches. If the old cutout is taller than 2-1/4 inches, it will show.
2) What is an extended lip strike for, and when do I need one instead of a standard strike?
An extended lip strike like the Don-Jo 9175-RC carries the lip further out from the screw line so the latch rides up onto the ramp and retracts before it hits anything. You need one where the door sits proud of the frame, where trim or a thick casing sits close to the jamb, or where the latch would otherwise catch the edge of the frame instead of the strike lip. On a flush, square opening where the latch already rides cleanly onto a standard strike, the extra lip only adds something to catch a mop or a cart on.
3) Does the radius corner Don-Jo 9175 strike fit a hollow metal frame, or do I need the square corner version?
Radius corner is what the RC in 9175-RC means, so this one drops into a frame prep with rounded corners. Most hollow metal frames are prepped with a radius corner cutout, while square corner preps are typically found on aluminum and on some wood jambs where the mortise was routed square. Look at the corners of the existing cutout in your jamb: rounded, this fits; square, the radius version will leave four gaps at the corners and you want a square corner strike instead.
4) How many latch holes does the Don-Jo 9175-RC strike have? I have a lock with a latch and a deadbolt.
One latch hole only. The 9175-RC is a single-hole strike, so it suits a knob, lever, or single-latch lockset. If you are working with a separate deadbolt above the latch, that deadbolt needs its own strike, and an interconnected or mortise lock that throws a latch and a bolt through one prep needs a two-hole or a T-strike instead.
5) Does an extended lip strike have a handing, or will one part work on both left and right hand doors?
Handing matters on any extended lip strike, including the 9175-RC, because the lip only extends toward one side. The lip has to run toward the door stop on the swing side so the latch ramps onto it. Stand outside the door and note which jamb the lock is on, and order the lip to that side. A strike with the lip pointed the wrong way will hold the door open rather than let the latch in.
6) Is the Detex 92 strike kit an equivalent replacement for a Don-Jo 9175-RC extended lip strike?
No, they solve different problems. The Don-Jo 9175-RC is an extended lip strike with a radius corner, 2-1/4 inches high by 1-3/4 inches wide, with the width measured from the center of the screw hole to the end of the lip, in 18-gauge (.050) steel with a single latch hole. The Detex 92 Strike Kit is a double door strike kit supplied with tamper resistant fasteners, part of the Detex 90 Strike Series. If the opening is a single latch point in a standard frame and the lip needs to reach past the jamb face, the 9175-RC is the extended lip strike for it. If the opening is a pair of doors being strike-kitted with tamper resistant fasteners, that is the Detex 92 job.
7) Is 18 gauge steel heavy enough for a strike on a high traffic commercial door?
The 9175-RC is fabricated from 18-gauge steel at .050 thickness, which is the working gauge for commercial strikes and is what Don-Jo puts on this one for office, school, healthcare, retail, warehouse, and multi-tenant openings. Where a door gets kicked, pried, or hit by carts all day, the strike is rarely the failure point at this gauge; the jamb behind it is. If the opening has a history of getting forced, back the strike with a strike box or a wrap-around reinforcer rather than looking for a thicker strike plate.
8) What finishes does the Don-Jo 9175-RC extended lip strike come in, and which one matches my existing levers?
Eight finishes: 605 polished brass, 609 antique brass, 619 satin nickel, 620 antique nickel, 622 matte black, 629 bright stainless steel, 630 satin stainless steel, and DU duronodic brown coated. If your building is standardized on 626 satin chrome levers, 619 satin nickel or 630 satin stainless are the closest visual match on a strike, and on hollow metal frames a lot of managers just run 630 across the whole fleet because it hides scuffing and works next to almost any lever finish. Aluminum storefront with dark bronze frames takes the DU.
9) Can I use the Don-Jo 9175-RC on a pair of doors with no mullion?
No. The 9175-RC mounts to a jamb and takes a single latch, so it is a strike for a door that closes against a frame or a mullion. On a pair of doors where the inactive leaf is the strike point, or on double doors with panic hardware, you want a strike built for that condition, such as the Detex 92 Strike Kit, which is a double door strike kit supplied with tamper resistant fasteners.
10) What is the difference between a Trimco 1260P pipe adapter strike and a Don-Jo 9175-RC extended lip strike?
The Trimco 1260P is a pipe adapter strike from the Trimco 1260 Series, supplied as the strike only, intended for a pipe or tubular frame condition rather than a flat jamb face. The Don-Jo 9175-RC is a flat extended lip strike, 2-1/4 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 with a radius corner and one latch hole. Match the strike to the frame you are cutting into: a pipe or tube jamb needs the pipe adapter, a conventional frame with a latch that needs extra lip reach takes the 9175-RC.
11) I need one strike style across an entire building. Which of these covers the most standard single doors?
The Don-Jo 9175-RC is the one built for repeat single door use: it is a commercial extended lip strike with a single latch hole, 18-gauge (.050) steel, a 2-1/4 inch by 1-3/4 inch radius corner face, and it comes in eight finishes including 605 polished brass, 619 satin nickel, 622 matte black, 630 satin stainless steel, and DU duronodic brown, so one strike style can be finished to match whatever is already hanging on the doors. The Detex 92 Strike Kit is a double door kit with tamper resistant fasteners, and the Trimco 1260P is a pipe adapter strike, so both are for specific openings rather than a building-wide standard.
12) How is the Don-Jo 9175-RC sold, in singles or in a box?
Shelf packs of ten. That works in your favor on a multi-door standardization job, since you are refitting a corridor or a floor of units in one finish anyway. For a one-off strike swap on a single opening, expect to end up with nine spares in the truck.
13) Are screws included with the Don-Jo 9175-RC strike?
Nothing is stated as packed with the 9175-RC beyond the strike itself, so plan on reusing the existing jamb screws or bringing your own flat head machine screws for a hollow metal frame and wood screws for a wood jamb. If the opening needs tamper resistant fasteners as part of the spec, a strike kit that ships with them, like the Detex 92, is a different way to solve that.
How fast can I get the Don-Jo 9175-630-RC 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 9175-630-RC come with a warranty?
Absolutely. The Don-Jo 9175-630-RC 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 9175-630-RC?
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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