Don-Jo 9103 Extended Lip Door ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$6.70
$4.31
Don-Jo 9103 Extended Lip Door Strike, 2-1/4" x 3" with Radius Corner Option

Don-Jo 9103 Extended Lip Door Strike, 2-1/4" x 3" with Radius Corner Option

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Model: 9103-630
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$6.70
$4.31
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Don-Jo 9103 Extended Lip Door Strike, 2-1/4" x 3" with Radius Corner Option

The Don-Jo 9103 is a commercial-grade Extended Lip Door Strike measuring 2-1/4" in height and 3" in width, constructed from heavy-duty 18-gauge (.050) steel for reliable performance in demanding door hardware applications. Featuring a single latch hole and optional radius corners, this strike is designed to accommodate a wide range of commercial door installations. Available in multiple finishes including DU, 605, 609, 619, 620, 622, 629, and 630, the 9103 offers versatile compatibility for new construction and replacement projects alike. Note that the width measurement is taken from the center of the screw hole to the end of the lip.

Key Features

  • Precise Dimensions: Measures 2-1/4" in height and 3" in width, with the width measured from the center of the screw hole to the end of the lip for accurate installation planning.
  • Heavy-Duty Gauge Construction: Manufactured from 18-gauge (.050) steel, providing durable, long-lasting performance suited for commercial door applications.
  • Extended Lip Design: The extended lip configuration offers enhanced latch engagement and added security for commercial door frames.
  • Radius Corners Available: Optional radius corners provide installation flexibility to match a variety of door frame preparations and aesthetic requirements.
  • Single Latch Hole: Features one latch hole for straightforward, clean installation with standard latch bolt configurations.
  • Multiple Finish Options: Available in eight finishes — DU, 605, 609, 619, 620, 622, 629, and 630 — to coordinate with existing door hardware and architectural requirements.
  • Convenient Shelf Pack: Sold in shelf packs of 10, making this strike an efficient choice for contractors and distributors managing multiple installations.

Technical Specifications

  • Product Group: Parts and Accessories
  • Subcategory: Door Strikes
  • 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 9103?

Don-Jo door strike products are engineered to deliver professional-grade reliability, with the 9103 built from 18-gauge (.050) steel to withstand the rigors of high-traffic commercial environments. The extended lip design, optional radius corners, and broad selection of eight available finishes make this strike a versatile and dependable solution for contractors and facility managers seeking consistent, code-compatible door hardware performance.

Manufacturer Resources

DON-JO Strike Plates

Product Specs

Product Group:
Parts and Accessories
Subcategory:
Door Strikes
Product Subgroup:
Door Strikes and Strike Boxes
Product Type:
Door Strikes
Commercial/Residential:
Commercial
Product Model:
9103
Door Strike:
Extended Lip Strike
Product Category:
Parts and Accessories
Department:
Door Hardware

Don-Jo 9103-630 – Frequently Asked Questions

1) Will the Don-Jo 9103 extended lip strike cover the old cutout when I replace a worn strike on a commercial frame?
The 9103 measures 2-1/4 inches high by 3 inches wide, and that 3 inch width is measured from the center of the screw hole to the end of the lip, not edge to edge of the plate. So it buys you lip reach past the jamb, not extra plate face to hide an oversized mortise. Measure from your existing screw hole center out to where you need the lip to land, and compare that to 3 inches. The single latch hole works with a standard latchbolt, so a normal cylindrical or mortise latch prep lines up.
2) What is an extended lip strike for, and do I actually need one instead of a standard strike?
An extended lip strike like the Don-Jo 9103 is what you use when the door is set back from the face of the jamb, or a heavy stop, casing, or added trim would otherwise leave the latch riding on the frame instead of into the strike. The longer lip carries the latch out past that obstruction and guides it home. If your door sits flush with the jamb face and the latch already enters cleanly, a standard-lip strike is the simpler part. Reach for the 9103 when there is a gap or an obstruction between the latch and the strike opening.
3) Do I need square or radius corner strikes for my door frames?
That is decided by the frame prep already cut, not by preference. Hollow metal frames are commonly machined with a radiused strike pocket, while others are cut square. The Don-Jo 9103 is offered with an optional radius corner configuration so it drops into either prep without you filing the plate or filling the pocket. Look at the corners of the existing cutout in the jamb and order to match.
4) Is the Detex 92 strike kit an alternative to a Don-Jo 9103 extended lip strike?
They solve different problems. The Don-Jo 9103 is an extended lip strike with a single latch hole, 2-1/4 inch high by 3 inch wide, made from 18-gauge (.050) steel, and it mounts in the frame of a standard single opening. The Detex 92 Strike Kit is a double door strike kit supplied with tamper resistant fasteners, part of the 90 Strike Series, so it is meant for the pair-of-doors condition where the strike lands on the inactive leaf rather than on the jamb. If the opening is a single door with a hollow metal or wood frame, the 9103 is the strike that fits the prep; if it is a double door being fitted out with 90 Series hardware, the 92 kit is what that assembly calls for.
5) Can a Trimco 1260P be used where a Don-Jo 9103 extended lip strike is specified?
No, they are not interchangeable parts. The Trimco 1260P is a pipe adapter strike from the 1260 Series, sold as the strike only, and it is intended for a pipe or tubular post application rather than a conventional door frame. The Don-Jo 9103 is a flat extended lip strike, 2-1/4 inch by 3 inch in 18-gauge (.050) steel with a single latch hole and radius corners available, cut to sit in a standard frame prep. A locksmith replacing a strike in an existing hollow metal jamb wants the 9103 profile; the 1260P is the answer only when the latch is throwing into pipe.
6) Is the Don-Jo 9103 strike heavy enough for a high traffic commercial door?
It is built from 18-gauge (.050) steel and is a commercial-rated part, which is the weight you want on doors that cycle all day, schools, offices, healthcare corridors, and multi-tenant entries. Thinner residential strikes deform where the latch strikes the lip; .050 steel holds its shape. For an exterior or high-security opening you would still add a reinforced strike box behind it, since the plate itself is a surface strike with a single latch hole.
7) What finishes does the Don-Jo 9103 come in so it matches my existing lever and hinges?
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. For a property manager standardizing a building, 630 satin stainless is the usual match to commercial levers and 626-family hardware, and 622 matte black pairs with black lever trim. Pick the number stamped on the hardware you are matching rather than going by the color name.
8) Do Don-Jo 9103 strikes come individually or in a box?
The 9103 ships in shelf packs of 10 of one finish. That suits a contractor doing a floor of doors or a distributor stocking a fast-moving finish; if you only need one strike for a single opening you are still buying the pack of ten.
9) I need a strike for a pipe or round post rather than a flat jamb. Is the 9103 the right part?
It is not. The 9103 is a flat plate strike that fastens to a flat jamb face, and its extended lip is shaped for that. Mounting on round pipe or a tubular post calls for a pipe adapter strike, such as the Trimco 1260P from the 1260 Series, which is the adapter strike alone.
10) Does the Don-Jo 9103 come with a strike box or dust box behind it?
The 9103 is the strike plate itself, an 18-gauge steel extended lip strike with one latch hole. If your frame has no pocket behind the cutout, or you want the latch tip enclosed on a hollow metal or wood jamb, order a dust box separately and size it to your latch throw.
11) Is the Don-Jo 9103 handed, or does one strike work on left and right hand doors?
The 9103 is a symmetrical flat strike with a single latch hole and no handing to specify, so the same part serves a left or right hand opening. What does change by hand is which way the lip bends toward the door, which is set by how you install the plate on the jamb, not by a separate part number. That makes it easier to stock one finish across a mixed building.
12) For a facility standardizing strikes across many single doors, which of these is the one to stock?
The Don-Jo 9103 is the one that repeats across a building of single openings: one part number covers the 2-1/4 inch by 3 inch extended lip strike in 18-gauge (.050) steel, with radius corners available for frames prepped that way and 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 -- so the same strike can be matched to whatever lever and hinge finish is already on the floor. The Detex 92 Strike Kit and the Trimco 1260P are single-condition parts by comparison: the 92 is a double door kit in the 90 Strike Series and the 1260P is a pipe adapter strike. Those get ordered for the specific openings that need them, not as the house standard for single doors.
How fast can I get the Don-Jo 9103-630 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 9103-630 come with a warranty?
Absolutely. The Don-Jo 9103-630 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 9103-630?
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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