Don-Jo FBT-1 Flush Bolt Guide 2-1/2" x 7/8" 11-Gauge Steel for Commercial Doors
The Don-Jo FBT-1 Flush Bolt Guide is a heavy-duty commercial door trim accessory engineered from 11-gauge steel (.119 thickness) for reliable flush bolt operation. Measuring 2-1/2" in length and 7/8" in width, this guide provides precise alignment and smooth actuation for flush bolt assemblies on commercial doors. Designed for professional installation, the FBT-1 is sold in a shelf pack of 50, making it an efficient choice for contractors and facilities managers handling multiple door openings.
Key Features
- Precise Dimensions: Measures 2-1/2" in length and 7/8" in width, providing a consistent and accurate fit for flush bolt guide applications on commercial doors.
- Heavy-Gauge Steel Construction: Manufactured from 11-gauge (.119) steel for exceptional strength, durability, and long-term performance in demanding commercial environments.
- Commercial-Grade Quality: Engineered specifically for commercial door hardware applications, ensuring reliable flush bolt alignment and smooth operation.
- Contractor-Friendly Packaging: Available in a shelf pack of 50 units, ideal for multi-door projects and high-volume installations.
- Door Trim Compatibility: Designed as a flush bolt guide accessory within the Door Trim and Accessories category, compatible with standard commercial flush bolt assemblies.
- Versatile Application: Suitable for use across a wide range of commercial door configurations requiring flush bolt guide components.
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 FBT-1?
Don-Jo FBT-1 Flush Bolt Guide components deliver professional-grade reliability through heavy 11-gauge (.119) steel construction, ensuring consistent performance and durability across high-traffic commercial door applications. Engineered to exacting dimensional standards at 2-1/2" x 7/8", the FBT-1 provides the precise fit and dependable operation that commercial door hardware professionals demand.
Manufacturer Resources
DON-JO Filler Plates,Mounting Tabs & Signs"
Product Specs
- Subcategory:
- Flush Bolts
- Product Group:
- Door Trim and Accessories
- Product Subgroup:
- Filler Plates, Lock Adapters and Wrap Arounds
- Product Type:
- Flush Bolt Guide
- Commercial/Residential:
- Commercial
- Product Model:
- FBT 1
- Product Category:
- Door Trim and Accessories
- Product Substrate:
- Steel
- Department:
- Door Hardware
Don-Jo FBT-1 – Frequently Asked Questions
1) What does the Don-Jo FBT-1 flush bolt guide actually do on a pair of doors?
The FBT-1 is the strike-side guide plate that mortises into the frame head or the threshold/floor so the rod of a flush bolt drops cleanly into line. It is not the flush bolt itself and it has no latching hardware, it just keeps the bolt aligned and protects the edge of the hole it engages. On an inactive leaf of a pair, you typically need one at the top and one at the bottom for each flush bolt.
2) What size hole or cutout does the Don-Jo FBT-1 flush bolt guide cover?
The plate measures 2-1/2 inches by 7/8 inches, so your prep has to fall inside that footprint. Measure the existing mortise on the frame or threshold before ordering: if the old guide is longer or wider than 2-1/2 x 7/8, the FBT-1 will not cover the opening and you will see the cut edge.
3) Will the Don-Jo FBT-1 work with my existing flush bolts, or do I need matching brand hardware?
It is built to work with standard commercial flush bolt assemblies rather than one manufacturer's bolt, so the fit question is dimensional, not brand. Check two things: that your rod diameter drops freely through the guide, and that your frame or threshold prep is no larger than the 2-1/2 x 7/8 inch plate. If both check out, brand of the bolt does not matter.
4) I ordered a Don-Jo FBT-1 expecting a flush bolt. Is the bolt included?
No. The FBT-1 is the guide only, model FBT 1, a single 11-gauge steel plate. The flush bolt assembly, the rod and the lever mechanism are separate items and must be ordered on their own. Buyers replacing the whole mechanism need a flush bolt, not this guide.
5) What is an alternative to the Don-Jo FBT-1 flush bolt guide?
The International Door Closers FG-1200 is a standard flush bolt guide from the FB-1200 Series and serves the same purpose as the Don-Jo FBT-1: guiding the rod of a flush bolt assembly in the door edge. The FBT-1 is a steel guide measuring 2-1/2 inches long by 7/8 inch wide in 11-gauge (.119) material. If your opening was originally fitted with FB-1200 Series flush bolts, the FG-1200 is the guide matched to that series; for general commercial replacement where the 2-1/2 inch by 7/8 inch mortise prep already exists, the FBT-1 drops into it.
6) Is the FBT-1 flush bolt guide heavy enough for a high traffic entrance?
It is formed from 11-gauge steel, .119 inch thick, which is the reason it holds up where a thin stamped guide deforms. The bolt rod strikes the same spot every cycle, and at .119 inch the plate keeps its shape in school, hospital and warehouse openings rather than belling out around the hole.
7) Do I have to buy a case of Don-Jo FBT-1 guides, or can I get just one or two?
The FBT-1 comes in a shelf pack of 50. That suits a property manager or contractor working through a run of double-door openings, since each inactive leaf with top and bottom flush bolts consumes two guides. For a single door repair it is more guides than the job needs, so plan it as stock for the building rather than a one-off part.
8) What other flush bolt guides could I use instead of the Don-Jo FBT-1?
The International Door Closers FG-1200 is the other standard flush bolt guide stocked, part of the FB-1200 Series. The practical difference is that the Don-Jo FBT-1 publishes its plate size at 2-1/2 x 7/8 inches and 11-gauge .119 steel, so if you are matching an existing mortise exactly, the FBT-1 gives you the numbers to check against. If you are already running FB-1200 Series flush bolts, the FG-1200 is the guide from that same family.
9) Is a flush bolt guide the same thing as the flush bolt itself?
No. The Don-Jo FBT-1 is only the guide plate and bushing that the flush bolt rod passes through, cut into the door edge or frame to keep the rod aligned. It does not include the flush bolt mechanism, lever, or strike. The International Door Closers FG-1200 is likewise a flush bolt guide rather than a complete bolt, part of the FB-1200 Series. If your inactive leaf needs the operating bolt replaced and not just the guide, you need a flush bolt assembly, and the guide is ordered alongside it.
10) For a facility standardizing flush bolt guides across many doors, how does the Don-Jo FBT-1 compare to the International Door Closers FG-1200?
Both are commercial flush bolt guides. The FBT-1 is specified by its own dimensions and material - 2-1/2 inches by 7/8 inch in 11-gauge steel - and is sold in a shelf pack of 50, which suits standardizing a run of openings from one part number. The International Door Closers FG-1200 is identified by series rather than by a standalone size, belonging to the FB-1200 Series, so it is the choice when you are matching guides to FB-1200 flush bolts already installed. Confirm the existing mortise cutout in the door edge before committing either way.
11) Is the FBT-1 a residential part or strictly commercial door hardware?
Strictly commercial. Don-Jo classes the FBT-1 as commercial hardware, and the applications it is written for are office buildings, schools, healthcare, retail, industrial, multi-tenant residential and government facilities. On a house you would rarely see a flush bolt guide of this weight.
How fast can I get the Don-Jo FBT-1 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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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 FBT-1 come with a warranty?
Absolutely. The Don-Jo FBT-1 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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