ABH A111HD/A111LL Aluminum Con...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$146.00
$98.57
ABH A111HD/A111LL Aluminum Continuous Gear Hinges Full Mortise Heavy Duty BHMA Grade 1

ABH A111HD/A111LL Aluminum Continuous Gear Hinges Full Mortise Heavy Duty BHMA Grade 1

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Model: A111 HD C 079
$146.00
$98.57
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$146.00
$98.57
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ABH A111HD/A111LL Aluminum Continuous Gear Hinges Full Mortise Heavy Duty BHMA Grade 1

Professional Heavy-Duty Continuous Hinge Solution

The ABH A111HD/A111LL Aluminum Continuous Gear Hinges deliver professional-grade performance for commercial door applications requiring maximum durability and security. These BHMA Grade 1 certified hinges support up to 450 lbs door weight (1,000 lbs for LL model) with 48" maximum door width capacity. The full concealed design eliminates gaps between door and frame while the continuous construction prevents common alignment problems like door binding and sagging.

Professional Features & Benefits

  • Heavy-Duty Weight Capacity: Supports up to 450 lbs door weight standard, with LL model rated for lead-lined doors up to 1,000 lbs for demanding applications.
  • Maximum Door Width: Accommodates doors up to 48" width with full concealed mounting for enhanced security and aesthetics.
  • BHMA Grade 1 Certification: BHMA 156.25 Grade 1 certified construction ensures commercial-grade reliability and performance standards.
  • Fire Rating Compliance: Approved for metal swinging fire doors up to 90 minutes and wood swinging fire doors up to 60 minutes.
  • Precision Bearing System: Heavy duty 83" hinge features 32 bearings with 3" spacing on center for smooth, long-lasting operation.
  • Surface Mount Installation: No mortising of door or frame required - surface applied design covers old butt hinge cut-outs.
  • Enhanced Security Design: Continuous construction eliminates gaps between door and frame, preventing prying attempts.
  • Standard Length Options: Available in 79", 83", 85", 95" and 120" lengths with templated hole patterns for consistent installation.

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 Mortise
  • Keyed: N/A
  • Keyed Function: N/A
  • Product Category: Door Hinges and Pivots
  • Product Group: Door Hinges and Pivots
  • Product Model: A111HD/A111LL
  • Product Subgroup: Continuous Hinges
  • Product Type: Continuous Hinges
  • Subcategory: Full Mortise Hinges

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 continuous gear hinges deliver professional-grade reliability with anodized aluminum construction and precision bearing systems rated for heavy-duty commercial use. BHMA Grade 1 certification and fire rating approvals ensure code compliance and dependable performance. Engineered for demanding commercial applications where security, durability, and smooth operation are essential.

Product Specs

Subcategory:
Full Mortise Hinges
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
Commercial/Residential:
Commercial
Hinge Type:
Full Mortise
Keyed:
N/A
Keyed Function:
N/A
BAA Qualified:
Yes
Product Model:
A111HD/A111LL
Product Category:
Door Hinges and Pivots
Department:
Door Hardware

ABH A111 HD C 079 – Frequently Asked Questions

1) Do I have to mortise the door and frame to install an ABH A111 geared hinge?
No mortising of the door or frame is required. The A111 geared hinge is surface applied and it covers the old butt hinge cut-outs, which is why it is a common fix on a door that has already been rehung once and has chewed-up hinge pockets. Hole patterns are templated, so the layout is the same hinge to hinge across a building.
2) Is the ABH A111 continuous hinge approved for a 90 minute fire door?
Fire rated, yes. The A111 is approved for metal swinging fire doors up to 90 minutes and wood swinging fire doors up to 60 minutes. That 60 minute ceiling on wood is the detail that catches people out, so if the opening is a wood door on a 90 minute wall, this hinge is not the one.
3) Is the ABH A111HD hinge BHMA Grade 1, and does it qualify under Buy American?
BHMA 156.25 Grade 1 certified, and BAA qualified. That combination is what most government, healthcare and education specs are looking for on a continuous geared hinge, and it is why the A111 shows up on institutional door schedules. It is a commercial-rated product, not a residential one.
4) Should I use a full mortise or a full surface continuous hinge?
The ABH A111 is a full mortise hinge, meaning it sits between the door edge and the frame rabbet and stays concealed when the door is closed. That concealed line eliminates the gap between door and frame, which is the security argument for it. A full surface hinge instead wraps the face of the door and frame and is the choice when the existing frame rabbet is damaged or the door swings out. For that, Design Hardware's FSHD Full Surface heavy duty geared hinge or the BEST 664HD full surface geared hinge are the equivalents.
5) What is the difference between the ABH A111HD and the A111LL?
Weight capacity is the difference. The HD is the standard heavy duty build at 450 lbs; the LL is built for lead-lined doors and carries up to 1,000 lbs. Everything else lines up, both come in 79, 83, 85, 95 and 120 inch lengths and in Black, Clear Anodized Aluminum or Dark Bronze. If you are hanging shielded doors in an imaging suite or a dental operatory, the LL is the one to specify.
6) My doors keep sagging and binding on butt hinges. Will a continuous geared hinge fix that?
That is the main reason these get specified. The A111 runs the full height of the door, so the load spreads down the whole edge instead of concentrating on three or four butt points, and the continuous construction prevents door binding and sagging. On the 83 inch heavy duty hinge there are 32 bearings at 3 inch spacing on center carrying the swing. For a facility standardizing across a lot of openings, the templated hole pattern means the same layout on every door.
7) What is the closest full mortise heavy duty continuous geared hinge to the ABH A111HD if I need a different brand on the same opening?
The Design Hardware FMHD is the direct counterpart - a full mortise heavy duty continuous geared hinge, the same mounting style and duty level as the A111HD, which is a full mortise heavy duty hinge in aluminum. The Pemko FM-RG Series is another full mortise aluminum geared hinge, Grade 1, with a raised gear profile and 180 degree swing. All three mortise into the door and frame edge rather than surface applying, so the opening prep is the same family of work.
8) The door edge is already chewed up from old butt hinges - what geared hinge do I use instead of a full mortise one?
Go to a full surface hinge. The ABH A111HD is a full mortise hinge, so it needs clean mortise prep on the door and frame edge. The Design Hardware FSHD is a full surface heavy duty continuous geared hinge and the BEST 664HD is a full surface heavy duty geared hinge with a 90 minute UL fire rating; the NGP HD5700 is a full surface geared hinge with 1/16 inch door inset for 1-3/4 inch to 2-1/4 inch doors. Full surface leaves apply over the face of the door and frame, so worn edge conditions do not have to be repaired first.
9) Is the Pemko DSH1000 a substitute for the ABH A111HD on a standard commercial opening?
They are not interchangeable. The Pemko DSH1000 is an anti-barricade continuous hinge with 100 degree bidirectional operation, Grade 1, meaning the door can be swung either way so an occupant cannot barricade the opening - a behavioral health and detention style requirement. The ABH A111HD is a full mortise geared hinge for conventional single direction swing, BHMA Grade 1, rated to 450 lb. Specify the DSH1000 only when the anti-barricade function is actually called for; for a standard commercial door the A111HD or another full mortise geared hinge is the like for like.
10) Which continuous hinge do I use if my doors have a 3/32 inch inset instead of the standard prep?
The BEST 663HD is a heavy duty continuous hinge built for 3/32 inch inset doors and is 90 minute UL fire rated. Inset dimension is the gap the hinge geometry is cut for, so it has to match the door and frame condition rather than being adjusted in the field. For comparison, the NGP HD5700 is cut for 1/16 inch door inset on 1-3/4 inch to 2-1/4 inch doors, and the ABH A111HD is a full mortise heavy duty geared hinge - check the door clearance chart against the actual opening before committing.
11) I have lead-lined doors in an imaging suite - can I use a standard heavy duty continuous hinge?
Lead-lined leaves run far heavier than a normal door, so the hinge has to be rated for it. The ABH A111LL is the lead-lined version, rated to 1,000 lbs, against 450 lbs for the standard heavy duty A111HD, and both are ordered in 79, 83, 85, 95 and 120 inch lengths. The other heavy duty geared hinges in the class - the Design Hardware FMHD full mortise and the BEST 663HD and 664HD - are heavy duty continuous hinges without a lead-lined designation, so for lead-lined leaves specify the LL version rather than a standard heavy duty hinge.
12) What screws come with the ABH A111 gear hinge and do I need to drill and tap the frame?
The A111 ships with 12-24 x 3/4 inch undercut self drilling, thread forming tek machine screws. Self drilling and thread forming means they cut their own threads into hollow metal, so there is no separate drill and tap step on a steel frame. Budget install time on the fastener count, not on prep.
13) Is there a lighter duty continuous hinge than the ABH A111HD for an interior door that does not see abuse?
Yes. The BEST 641 is a steel full mortise standard duty continuous hinge with hospital tips, rated medium duty, and the BEST 651 is a stainless steel full mortise continuous hinge with hospital tips, also medium duty. Both mount full mortise like the A111HD, which is a full mortise heavy duty aluminum geared hinge rated to 450 lb door weight. The BEST pair are steel and stainless steel rather than aluminum, and the hospital tip ends are the usual choice where a sloped, snag-free top and bottom is wanted.
14) The frame is out of alignment and the door has to stand off - is a full surface offset hinge the same as the ABH A111HD?
No, they are different mounting geometries. The Design Hardware FSOHD is a full surface offset heavy duty continuous geared hinge, where the offset carries the door away from the frame face. The ABH A111HD is a full mortise hinge, which sets the door directly into the frame rebate. A half surface option also exists in the NGP HD5400A, an 83 inch half surface continuous geared hinge in aluminum alloy with a 10C 90 minute fire rating on hollow metal, which mortises one leaf and surface applies the other.
15) For a Buy American job, which continuous geared hinges can I put on the submittal?
The ABH A111HD/A111LL is BAA qualified, which is the value a government or municipal submittal is checking for, and it is BHMA A156.25 Grade 1 with fire approvals for metal swinging fire doors up to 90 minutes and wood swinging fire doors up to 60 minutes. Where the schedule also needs a Grade 1 alternate named, the Pemko FM-RG Series and Pemko CFM84SLF-HD1 are Grade 1 continuous geared hinges, and the Design Hardware FMHD is the matching full mortise heavy duty geometry. Verify country of origin documentation for any alternate with the manufacturer before it goes on the submittal.
How fast can I get the ABH A111 HD C 079 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 A111 HD C 079 come with a warranty?
Absolutely. The ABH A111 HD C 079 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 A111 HD C 079?
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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