Don-Jo C Flush Bolt Filler Pla...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$4.46
$3.81
Don-Jo C Flush Bolt Filler Plate 3-7/8" x 1" Steel for Commercial Doors

Don-Jo C Flush Bolt Filler Plate 3-7/8" x 1" Steel for Commercial Doors

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Model: FBR-C

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

$4.46
$3.81
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Don-Jo C Flush Bolt Filler Plate 3-7/8" x 1" Steel for Commercial Doors

The Don-Jo FBR C Flush Bolt Filler Plate is a precision-manufactured steel accessory designed to cover and conceal flush bolt cutouts on commercial doors. Measuring 3-7/8" in length and 1" in width, this filler plate is constructed from 16-gauge (0.060") steel, delivering the structural integrity and clean finish required in professional door hardware applications. Ideal for use wherever flush bolt openings need to be neatly covered, this plate is a reliable solution for door trim and accessory needs in commercial environments.

Key Features

  • Precise Dimensions: Measures 3-7/8" in length and 1" in width, providing an accurate fit for standard flush bolt cutouts on commercial doors.
  • Heavy-Gauge Steel Construction: Fabricated from 16-gauge (0.060") steel for durable, long-lasting performance in demanding commercial applications.
  • Clean, Professional Finish: Designed to neatly cover and conceal flush bolt openings, maintaining a polished appearance on door surfaces.
  • Commercial-Grade Quality: Engineered specifically for commercial door hardware applications where reliability and appearance are essential.
  • Convenient Shelf Pack: Available in a shelf pack of 10 units, making it easy to stock and manage for contractors and facility maintenance teams.
  • Versatile Accessory: Suitable for use as part of door trim and accessory installations, including filler plate, lock adapter, and wrap-around applications.

Technical Specifications

  • Subcategory: Flush Bolts
  • Product Group: Door Trim and Accessories
  • Product Subgroup: Filler Plates, Lock Adapters and Wrap Arounds
  • Commercial/Residential: Commercial
  • Product Category: Door Trim 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 FBR?

Don-Jo Flush Bolt Filler Plates are built to professional commercial standards, utilizing 16-gauge (0.060") steel construction that ensures durability and a consistent, clean appearance across door hardware installations. Engineered for demanding commercial environments, the FBR C delivers the precise fit and material quality that contractors and facility managers depend on for long-term performance.

Product Specs

Subcategory:
Flush Bolts
Product Group:
Door Trim and Accessories
Product Subgroup:
Filler Plates, Lock Adapters and Wrap Arounds
Product Type:
Flush Bolt Filler Plate
Commercial/Residential:
Commercial
Product Model:
FBR C
Product Category:
Door Trim and Accessories
Product Substrate:
Steel
Department:
Door Hardware

Don-Jo FBR-C – Frequently Asked Questions

1) What is a Don-Jo FBR C flush bolt filler plate used for?
The FBR C is a steel cover plate that closes off a flush bolt cutout in a commercial door edge. When a flush bolt is removed, or the door was prepped for one that never got installed, you're left with an open mortise pocket in the edge. The FBR C covers it. It's a cover, not a working bolt, so it does nothing to latch or secure the inactive leaf of a pair.
2) Will the Don-Jo FBR C cover my flush bolt cutout, or do I need a different size?
The FBR C measures 3-7/8 x 1 inches, so it covers a cutout up to that footprint and no larger. Measure the exposed pocket in the door edge before you order. If your prep is wider than 1 inch or longer than 3-7/8 inches, the plate will leave part of it open and you need a larger filler.
3) Is the Don-Jo FBR C a repair plate for a flush bolt, or does it replace the bolt itself?
It's a filler, not a replacement bolt. If the inactive leaf of your pair still needs to be held top and bottom, you need an actual flush bolt or a surface bolt, not this plate. Buy the FBR C when you're taking flush bolts out of service, converting a pair to another arrangement, or dressing up a door that was prepped and never fitted.
4) How thick is the Don-Jo FBR C filler plate, and will it stand proud of the door edge?
It's 16-gauge steel, 0.060 inches thick. That's a sixteenth of an inch sitting on the surface of the door edge, which matters if the plate lands where the edge meets the frame rabbet or where an astragal seats. On a standard pair with normal clearance it clears fine, but on a tight opening check the gap before you fasten it down.
5) Does the Don-Jo FBR C come in a multi-pack?
It's sold as a shelf pack of 10. That suits a maintenance shop or a contractor doing a run of openings; if you only need one edge covered, you'll still be taking ten.
6) Is the Don-Jo FBR C rated for commercial doors or is it a residential part?
It's a commercial-duty part, built from 16-gauge steel rather than light stamped stock, and it's used across offices, schools, healthcare, retail, warehouses, multi-tenant residential and municipal buildings. On a residential opening it will still do the job, it's just heavier than the application needs.
7) Will the Don-Jo FBR C filler plate rust if I use it on an exterior door edge?
The FBR C is steel, so on an exposed edge it needs a finish over it to stay clean. Inside a rabbeted frame on a pair of doors the edge is mostly shielded, which is where these normally land. For a genuinely wet or coastal opening, steel is the wrong substrate and you want a stainless or brass filler instead.
How fast can I get the Don-Jo FBR-C 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 FBR-C come with a warranty?
Absolutely. The Don-Jo FBR-C 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 FBR-C?
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 FBR-C 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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