Don-Jo HF-45 Hinge Filler Plat...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$4.46
$2.75
Don-Jo HF-45 Hinge Filler Plate 4-1/2" x 1-3/4" | 10-Gauge Steel, Prime Coated

Don-Jo HF-45 Hinge Filler Plate 4-1/2" x 1-3/4" | 10-Gauge Steel, Prime Coated

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Model: HF-45
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$4.46
$2.75
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Don-Jo HF-45 Hinge Filler Plate 4-1/2" x 1-3/4" | 10-Gauge Steel, Prime Coated

The Don-Jo HF-45 Hinge Filler Plate is a commercial-grade steel accessory engineered to cover unused or misaligned hinge cutouts on door frames and doors. Measuring 4-1/2" in length and 1-3/4" in width, this filler plate is fabricated from heavy-duty 10-gauge (.134) steel and finished with a prime coat, making it ready for field painting to match any door or frame finish. Designed for commercial applications, it provides a clean, professional appearance while protecting exposed mortise areas.

Key Features

  • Precise Dimensions: Measures 4-1/2" in length and 1-3/4" in width, sized to cover standard hinge cutouts on commercial doors and frames.
  • Heavy-Duty 10-Gauge Steel Construction: Fabricated from 10 ga. (.134) steel for exceptional rigidity and durability in demanding commercial environments.
  • Prime Coat Finish: Arrives with a prime coat applied, providing a ready-to-paint surface that accepts field-applied finishes to match any door or frame color.
  • Commercial-Grade Quality: Engineered specifically for commercial door hardware applications, ensuring reliable performance and a professional appearance.
  • Convenient Shelf Pack Quantity: Available in a shelf pack of 10, making it easy to stock and manage for contractors and facility maintenance teams.
  • Versatile Door Trim Accessory: Classified within the Filler Plates, Lock Adapters and Wrap Arounds product subgroup, suitable for a wide range of door trim and accessory needs.

Technical Specifications

  • Subcategory: Filler Plates
  • 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 HF-45?

Don-Jo HF-45 Hinge Filler Plates deliver professional-grade reliability through heavy-duty 10-gauge (.134) steel construction, ensuring lasting durability in high-traffic commercial environments. The prime coat finish provides immediate field-painting readiness, while the precise 4-1/2" x 1-3/4" dimensions ensure a clean, accurate fit over standard hinge mortises. Engineered for commercial door hardware applications where a polished, finished appearance and structural integrity are equally essential.

Manufacturer Resources

DON-JO Hinges

Product Specs

Subcategory:
Filler Plates
Product Group:
Door Trim and Accessories
Product Subgroup:
Filler Plates, Lock Adapters and Wrap Arounds
Product Type:
Hinge Filler Plate
Commercial/Residential:
Commercial
Product Model:
HF 45
Product Finish:
Prime Coat
Product Category:
Door Trim and Accessories
Product Substrate:
Steel
Department:
Door Hardware

Don-Jo HF-45 – Frequently Asked Questions

1) What covers an old hinge mortise on a steel frame when the hinge is being moved or removed?
The Don-Jo HF-45 hinge filler plate is made for exactly that. It's a 4-1/2 x 1-3/4 inch steel plate that caps an unused or misaligned hinge cutout on either the door or the frame, so the exposed mortise pocket isn't sitting open. Common on commercial openings where a door gets rehung, a hinge location changes, or a continuous hinge replaces butt hinges and the old cutouts stay behind.
2) What finishes does the Don-Jo HF-45 come in?
Four: prime coated, brass plated, chrome plated, and duronodic brown. The prime coat is the one to order if you're painting the door or frame in the field, since it takes paint directly and lets you match whatever color the opening already is. Brass plated, chrome plated, and duronodic are the choices when the plate stays exposed and has to blend with the rest of the trim on the door.
3) Is 10-gauge steel heavy enough for a hinge filler plate in a high traffic building?
10 gauge works out to .134 inch thick steel, which is the same order of thickness as the hinge reinforcement it's covering. That's why it doesn't oil-can or dish when a cart or a hand catches it, which is the failure you get with thin sheet-metal covers in schools, hospitals, and warehouse corridors. The HF-45 is built for commercial openings rather than residential ones.
4) Can I use a Don-Jo hinge filler plate on the door itself, or only on the frame?
Both. The HF-45 is made to cover the mortise on a door leaf or on the frame rabbet, so if you've moved a hinge you can plate the door side, the frame side, or both to close out the pair of matching cutouts.
5) How many hinge filler plates do I need for one door?
Count the cutouts, not the doors. A commercial door typically hangs on three hinges, and each abandoned hinge location leaves two mortises, one in the door and one in the frame. So plating out all three positions on a single opening takes six HF-45s. Don-Jo packs them in a shelf pack of 10, which covers roughly one and a half openings done completely, or three openings if you're only plating the frame side.
6) Is a hinge filler plate the same thing as a hinge reinforcement or a wrap around plate?
No, and they solve opposite problems. A filler plate like the HF-45 is flat and covers a hinge mortise you are no longer using. A hinge reinforcement adds metal behind a hinge that's still carrying the door. A wrap around plate bends around the edge of the door to repair or reinforce a lock area. If your hinge is still hung and the screws are stripping, a filler plate is the wrong part.
7) Will a Don-Jo HF-45 filler plate reuse the existing hinge screw holes?
Not reliably. The HF-45 is a flat cover plate for the mortise, and existing hinge screw holes in the door or frame sit where the hinge leaf put them, not where the plate wants fasteners. Plan on drilling and fastening the plate to sound metal or wood at the pocket, and expect to fill or dress the old holes underneath before the plate goes on if you're painting a prime coated one for a finished appearance.
How fast can I get the Don-Jo HF-45 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 HF-45 come with a warranty?
Absolutely. The Don-Jo HF-45 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 HF-45?
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 HF-45 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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