ABH A575HD Heavy Duty Aluminum...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$206.00
$187.51
ABH A575HD Heavy Duty Aluminum Continuous Gear Hinge Full Surface 450 lbs Capacity

ABH A575HD Heavy Duty Aluminum Continuous Gear Hinge Full Surface 450 lbs Capacity

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Model: A575 HD079 C
$206.00
$187.51
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$206.00
$187.51
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ABH A575HD Heavy Duty Aluminum Continuous Gear Hinge Full Surface 450 lbs Capacity

Professional Full Surface Continuous Hinge Solution

The ABH A575HD Heavy Duty Aluminum Continuous Gear Hinge delivers professional-grade performance for commercial door applications requiring superior weight capacity and alignment control. Engineered for full surface mounting with 450 lbs maximum door weight capacity and 48" maximum door width, this continuous hinge features heavy-duty aluminum construction with BHMA 156.25 Grade 1 certification. The 1/16" door inset design accommodates narrow-faced frames while providing fire ratings up to 90 minutes for metal doors and 60 minutes for wood doors.

Professional Features & Benefits

  • Heavy-Duty Weight Capacity: Supports up to 450 lbs door weight with 48" maximum door width for demanding commercial applications.
  • Superior Door Alignment: Continuous design evenly distributes weight throughout the entire door and frame, eliminating common alignment problems such as door binding and sagging.
  • Enhanced Security Design: Eliminates the gap between door and frame, preventing prying attempts and providing additional security protection.
  • No Mortising Required: Full surface application eliminates the need for door or frame mortising, simplifying installation and covering old butt hinge cut-outs.
  • Fire Rated Performance: Approved for metal swinging fire doors up to 90 minutes and wood swinging fire doors up to 60 minutes.
  • BHMA Grade 1 Certified: BHMA 156.25 Grade 1 certification ensures professional-grade durability and performance standards.
  • Anodized After Machining: Premium anodizing process applied after machining provides superior finish quality and corrosion resistance.
  • Templated Hole Patterns: Standard-length hinges feature consistent templated hole patterns for reliable installation over time.

Technical Specifications

  • BAA Qualified: Yes
  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Door Weight: 450
  • Fasteners: 12-24 X 3/4" undercut self drilling, thread forming tek machine screws
  • Hinge Type: Full Surface
  • Keyed: N/A
  • Keyed Function: N/A
  • PDF:A575HD Aluminum Continuous Gear Hinges Full Surface: https://zensupply.com/content/pdf/abh/0002460_a575_full_surface_aluminum_gear_hinge.pdf
  • PDF:A575HD Aluminum Continuous Gear Hinges Full Surface - Cut Sheet: https://zensupply.com/content/pdf/abh/0002531_a575_gear_hinge.pdf
  • Product Category: Door Hinges and Pivots
  • Product Group: Door Hinges and Pivots
  • Product Model: A575HD
  • Product Subgroup: Continuous Hinges
  • Product Type: Continuous Hinges
  • Subcategory: Full Surface Model

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Choose ABH Quality?

ABH A575HD continuous hinges deliver professional-grade reliability with heavy-duty aluminum construction and BHMA Grade 1 certification for demanding commercial applications. The anodized-after-machining process and templated hole patterns ensure consistent quality and performance over time. Engineered for commercial applications where dependable performance and superior door alignment are essential.

Product Specs

Product Group:
Door Hinges and Pivots
Door Weight:
450
Fasteners:
12-24 X 3/4" undercut self drilling, thread forming tek machine screws
Product Subgroup:
Continuous Hinges
Product Type:
Continuous Hinges
Subcategory:
Full Surface Model
Commercial/Residential:
Commercial
Hinge Type:
Full Surface
Keyed:
N/A
Keyed Function:
N/A
BAA Qualified:
Yes
Product Model:
A575HD
Product Category:
Door Hinges and Pivots
Department:
Door Hardware

ABH A575 HD079 C – Frequently Asked Questions

1) Do I have to mortise the door or frame to install an ABH A575HD hinge?
No mortising. The A575HD is a full surface hinge, so both leaves screw onto the face of the door and the face of the frame. That is the reason it gets specified on retrofits: it covers over the old butt hinge cut-outs rather than requiring you to fill and re-prep them. Full mortise geared hinges, by contrast, need the door edge and frame rabbet machined out.
2) Is the ABH A575HD hinge fire rated?
Fire rated, yes: approved for metal swinging fire doors up to 90 minutes and wood swinging fire doors up to 60 minutes. It also carries BHMA 156.25 Grade 1 certification. If the opening on your drawing calls for a 90 minute wood door, this is not the hinge for it, the wood approval stops at 60.
3) What is the 1/16 inch door inset on the A575HD and does my opening need it?
Door inset is the gap the hinge is built around, the amount the door face sits back from the frame face. Every A575HD is built for a 1/16 inch inset, which suits narrow-faced frames. If your existing doors sit at a different inset, the leaves will not sit flat and the gear will not run true. Measure the setback at an existing hinge before ordering. Among the geared hinges we carry, the BEST 663HD is built for a 3/32 inch inset instead.
4) What is the closest full surface continuous geared hinge to the ABH A575HD from another brand?
The NGP HD5700 is the nearest match. It is a full surface continuous geared hinge built around a 1/16 inch door inset, the same inset the A575HD uses, and it is sized for 1-3/4 inch to 2-1/4 inch doors. The A575HD is a full surface hinge carrying a 450 lb door weight rating with a 1/16 inch inset. Both mount to the face of the door and frame rather than into a mortise, so either one covers old butt hinge cutouts without new prep. The BEST 664HD is the other full surface geared option, rated heavy duty with a 90 minute UL fire rating, and the Design Hardware FSHD is a heavy duty full surface geared hinge as well.
5) The door is already mortised for a continuous hinge - what takes the place of the A575HD?
A full surface hinge like the A575HD lands on the face of the door and frame, so it does not drop into an existing continuous hinge mortise. For a mortised opening, the Design Hardware FMHD is a heavy duty full mortise continuous geared hinge, and the Pemko FM-RG Series is a Grade 1 aluminum full mortise raised geared continuous hinge with 180 degree swing. The Pemko CFM84SLF-HD1 is an 84 inch full mortise short leaf flush heavy duty Grade 1 hinge for the same mortised condition.
6) Is a BEST 641 or 651 continuous hinge a substitute for an ABH A575HD?
They are not the same class of hinge. The BEST 641 is a steel full mortise standard duty continuous hinge with hospital tips and the BEST 651 is a stainless steel full mortise continuous hinge with hospital tips, and both are rated medium duty. The A575HD is a full surface hinge rated for 450 lb doors. Two things differ at once: the 641 and 651 need a mortise where the A575HD mounts to the face, and they sit at medium duty. For a BEST hinge that matches the A575HD mounting, the 664HD is the full surface heavy duty geared model.
7) Our doors have a 3/32 inch inset, not 1/16 inch - what heavy duty continuous hinge fits?
The BEST 663HD is built for 3/32 inch inset doors and is a heavy duty continuous hinge with a 90 minute UL fire rating. The ABH A575HD is supplied with a 1/16 inch door inset, so a 3/32 inch opening calls for the hinge cut for that gap. Inset on a geared continuous hinge sets the door-to-frame clearance the gear housing is machined around, so it has to match the opening rather than be adjusted at install.
8) Do screws come with the ABH A575HD continuous hinge?
It ships with 12-24 x 3/4 inch undercut self drilling, thread forming tek machine screws. Self drilling means you are fastening into hollow metal without pre-tapping. On a wood door you will want to confirm the fastener schedule for that substrate, since tek screws are a metal fastener.
9) Should I use a full surface or a full mortise continuous geared hinge?
Full surface, like the A575HD, mounts to the door and frame faces with no machining, so it is the retrofit answer when the frame is already in the wall and the old butt cut-outs need covering. Full mortise sits in the door edge and frame rabbet for a flush look, and is the choice on new doors specified from the start. We carry both in heavy duty: Design Hardware offers an FSHD full surface and an FMHD full mortise, and Pemko's FM-RG Series is a Grade 1 aluminum full mortise raised geared hinge. There is also a full surface offset version, the Design Hardware FSOHD, for openings where the door has to clear a projection.
10) Does the ABH A575HD qualify for a Buy American federal job?
Yes, the A575HD is BAA qualified, which is what a government or municipal spec typically asks for on federally funded work. It is a commercial-rated hinge, and Grade 1 under BHMA 156.25.
11) Can I standardize one continuous hinge across a whole building of different door sizes?
Largely, yes. Between the 79, 83, 85, 95 and 120 inch lengths the A575HD covers most standard commercial door heights, and the templated hole patterns on standard lengths stay consistent, so a hinge ordered next year drills the same as one ordered today. Two limits set the boundary: doors over 48 inches wide or over 450 lbs, and any opening whose door inset is not 1/16 inch.
12) What continuous hinge should I use if the frame face will not take a full surface leaf?
Two alternatives change where the hinge lands. The NGP HD5400A is an 83 inch half surface continuous geared hinge in aluminum alloy, which mortises into the frame and surface mounts to the door. The NGP HD1100A is an 83 inch concealed continuous geared hinge, heavy duty Grade 1, which sits inside the opening rather than on the face. Both carry a 10C fire rating of 90 minutes on hollow metal. The ABH A575HD applies to the face of both door and frame with no mortising of either.
13) For a behavioral health or detention door, is the A575HD the right continuous hinge?
The ABH A575HD is a standard full surface geared hinge for commercial openings, carrying 450 lb doors with fire ratings to 90 minutes on metal doors and 60 minutes on wood. Where the requirement is an anti-barricade opening, the Pemko DSH1000 is a Grade 1 anti-barricade continuous hinge with 100 degree bidirectional operation, letting the door swing both ways so staff can get in if the door is blocked. That bidirectional function is a different mechanism from a conventional single-swing geared hinge.
14) What continuous hinge do I use when the door has to clear a projection or swing past an obstruction?
An offset hinge moves the pivot point away from the door face so the leaf swings clear. The Design Hardware FSOHD is a full surface offset heavy duty continuous geared hinge for that condition. The ABH A575HD is a full surface geared hinge without the offset geometry, and the Design Hardware FSHD is the straight full surface heavy duty equivalent in that same line.
15) Which continuous hinges besides the ABH A575HD carry a 90 minute fire rating?
The A575HD is approved for metal swinging fire doors up to 90 minutes and wood swinging fire doors up to 60 minutes. Among comparable geared hinges, the BEST 663HD and BEST 664HD are both 90 minute UL fire rated, and the NGP HD5700, HD5400A and HD1100A each carry a 10C fire rating of 90 minutes on hollow metal. For a facility standardizing fire door hardware, that gives a full surface option, a half surface option and a concealed option all at the same 90 minute level on metal.
16) Which continuous geared hinges meet a Grade 1 spec on the drawing?
The ABH A575HD is certified to BHMA 156.25 Grade 1. On the comparable side, the Pemko CFM84SLF-HD1, FM-RG Series, FM-SLF and DSH1000 are each Grade 1, and the NGP HD1100A is Grade 3. If the spec calls Grade 1 and the opening is full surface, the A575HD holds that grade in the full surface mounting; the Pemko Grade 1 models are full mortise or anti-barricade configurations.
17) What finishes does the ABH A575HD gear hinge come in?
Three: clear anodized aluminum, dark bronze, and black. All three are offered in every length (79, 83, 85, 95 and 120 inch). The finish is anodized after machining rather than before, so the cut edges and screw holes are coated too, which matters on exterior openings where a bare machined edge would be the first thing to corrode.
18) Will a continuous gear hinge stop my exterior door from being pried at the hinge side?
It helps. Running the full height of the opening, the A575HD closes off the gap between door and frame that a pry bar needs to get a bite on. There are no individual hinge leaves or pins to attack either. Pair that with the 450 lb load rating and it is a common fix for high traffic entrances where butt hinges have already worn and dropped the door.
How fast can I get the ABH A575 HD079 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 ABH A575 HD079 C come with a warranty?
Absolutely. The ABH A575 HD079 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 ABH A575 HD079 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 ABH A575 HD079 C from ZenSupply?
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