ABH A111WTHD Wide Throw Alumin...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$339.00
$333.13
ABH A111WTHD Wide Throw Aluminum Continuous Gear Hinge Full Mortise for Lead-Lined Doors - BHMA Grade 1 Heavy Duty

ABH A111WTHD Wide Throw Aluminum Continuous Gear Hinge Full Mortise for Lead-Lined Doors - BHMA Grade 1 Heavy Duty

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Model: A111 WT HD079 C
$339.00
$333.13
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$339.00
$333.13
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ABH Wide Throw Aluminum Continuous Gear Hinge Full Mortise for Lead-Lined Doors - BHMA Grade 1 Heavy Duty

Professional Heavy-Duty Continuous Hinge Solution for Lead-Lined Door Applications

The ABH Wide Throw Aluminum Continuous Gear Hinge delivers BHMA Grade 1 performance specifically engineered for lead-lined doors requiring extra clearance. This full mortise continuous hinge supports up to 450 lbs. door weight with a maximum 48" door width capacity, featuring wide throw design for applications needing additional clearance between door and frame. The heavy-duty aluminum construction with continuous gear operation provides superior load distribution and eliminates common alignment problems while meeting fire rating requirements for both metal and wood fire doors.

Professional Features & Benefits

  • Heavy-Duty Load Capacity: Supports up to 450 lbs. door weight with 48" maximum door width for demanding commercial applications.
  • Wide Throw Design: Provides extra clearance for lead-lined doors and applications requiring additional space between door and frame with 1/8" door inset.
  • BHMA Grade 1 Certification: BHMA 156.25 Grade 1 certified for superior durability and performance in high-traffic commercial environments.
  • Fire Rating Compliance: Approved for metal swinging fire doors up to 90 minutes and wood swinging fire doors up to 60 minutes.
  • Continuous Load Distribution: Eliminates door binding and sagging by evenly distributing weight throughout the entire door and frame length.
  • Enhanced Security Design: Eliminates gap between door and frame, preventing prying attempts and improving overall security.
  • Heavy-Duty Bearing System: 83" hinge features 32 bearings with 3" spacing on center for smooth, long-lasting operation.
  • Surface Applied Installation: No mortising of door or frame required, and will cover old butt hinge cut-outs for retrofit applications.

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: A110WT/A111WT
  • Product Subgroup: Continuous Hinges
  • Product Type: Continuous Hinges
  • Subcategory: Full Mortise Hinges

Professional Applications

  • Healthcare Facilities with Lead-Lined Doors
  • Medical Imaging Centers and X-Ray Rooms
  • Laboratory and Research Facilities
  • Commercial Buildings with Heavy Doors
  • Educational Institution Specialized Rooms
  • Government and Security Facilities
  • Industrial Facilities with Radiation Protection

Why Choose ABH Quality?

ABH continuous hinges deliver professional-grade reliability with heavy-duty aluminum construction and BHMA Grade 1 certification for demanding commercial applications. The anodized finish applied after machining ensures long-lasting durability, while the continuous gear design with 32 bearings provides smooth operation rated for 450 lbs. door weight capacity. Engineered specifically for lead-lined doors and applications requiring extra clearance, these hinges eliminate common alignment problems while meeting stringent fire rating requirements.

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 Mortise Hinges
Commercial/Residential:
Commercial
Hinge Type:
Full Mortise
Keyed:
N/A
Keyed Function:
N/A
BAA Qualified:
Yes
Product Model:
A110WT/A111WT
Product Category:
Door Hinges and Pivots
Department:
Door Hardware

ABH A111 WT HD079 C – Frequently Asked Questions

1) Will a continuous geared hinge work on a lead-lined X-ray room door?
That's exactly what the ABH A111WT wide throw hinge is built for. Lead-lined doors are heavy and need extra clearance to swing clear of the frame, so the wide throw geometry pushes the door further off the jamb than a standard full mortise gear hinge. It carries doors up to 450 lbs and up to 48 inches wide, which covers most imaging room and shielded lab openings. The continuous gear runs the full height of the door, so the lead weight is spread down the whole jamb instead of concentrated at three butt hinge locations, which is what causes lead-lined doors to sag and drag.
2) Is the ABH wide throw continuous hinge fire rated for a 90 minute opening?
Metal swinging fire doors are covered up to 90 minutes, and wood swinging fire doors up to 60 minutes. That's a real distinction on the spec: if the drawing calls for a 90 minute wood door, this hinge does not meet it. It is also BHMA A156.25 Grade 1 certified, which is the top grade for continuous hinges and the one most institutional specs call out.
3) Can I replace the butt hinges on an existing hollow metal door with the ABH A111WT without replacing the door?
That is the standard retrofit for it. The hinge is surface applied with no mortising, and the leaf covers the existing butt hinge cut-outs in both the door and the frame, so you are not patching or replacing a damaged jamb. Fastening is with 12-24 x 3/4 inch self drilling, thread forming tek screws driven through the leaf. Match the length to the leaf (79, 83, 85, 95 or 120 inch), and confirm the opening is a 1/8 inch inset, which is what this hinge is cut for.
4) What door inset does the ABH A111WT wide throw hinge require?
Every A111WT wide throw configuration is built for a 1/8 inch door inset, in all five lengths and all three finishes. Inset is the gap the door sits back into the frame rebate, and a geared hinge is cut for one specific inset, so this will not run correctly on a door prepped for a different clearance. Measure the existing inset before ordering; if your opening is 3/32 inch, a hinge built for that inset such as the BEST 663HD is the match instead.
5) Full mortise or full surface continuous hinge, which one do I need?
Full mortise is what the ABH A111WT is, and it means the hinge leaves sit in the door and frame rebate, hidden when the door is closed, with the door inset into the frame. It is the choice on a standard hollow metal frame where the door recesses into the jamb. Full surface mounts flat onto the face of the door and frame instead, and it's what you use when the door and frame won't take a mortise application, on a frame with no rebate, or on a door too damaged at the edge; the Design Hardware FSHD and BEST 664HD are heavy duty full surface options. Full surface offset, like the Design Hardware FSOHD, handles openings where the door face and frame face are not in the same plane.
6) My door is heavier than 450 lbs or wider than 48 inches. Can I still use this hinge?
No. The A111WT wide throw is rated to 450 lbs at a maximum 48 inch door width, and exceeding either figure puts you outside the rating even if the hinge physically installs. Oversized and overweight leaves need a hinge rated for that load, and on very wide doors the width limit tends to be the one that catches people out before the weight does. Verify both the leaf weight and the leaf width before you commit.
7) I need a Buy American compliant continuous hinge for a federal job - how does the ABH A111WT compare to the other geared hinges?
The ABH A111WT is BAA qualified and BHMA 156.25 Grade 1 certified, which covers both the domestic sourcing box and the grade box on a federal submittal. Among the geared hinge peers, the Pemko FM-RG Series full mortise raised geared hinge and the Pemko 84 inch full mortise short leaf flush hinge are both Grade 1 construction if the specification is written to grade alone. Confirm which of the two requirements the specification is actually enforcing before you substitute.
8) The door frame will not take a mortised hinge leaf - what continuous geared hinge should I use instead of the ABH A111WT?
Go to a surface applied continuous geared hinge. The Design Hardware Full Surface - Heavy Duty Continuous Geared Hinge and the Design Hardware Full Surface Offset - Heavy Duty Continuous Geared Hinge both mount to the face of the door and frame at a heavy duty level, and the NGP HD5700 is an 83 inch full surface continuous geared hinge with a 1/16 inch door inset for 1-3/4 inch to 2-1/4 inch doors. The BEST 664HD is a full surface continuous geared hinge with a 90-minute UL fire rating. The ABH A111WT is a full mortise hinge, so it needs the leaf pocket those alternatives avoid.
9) My door inset is 3/32 inch, not 1/8 inch - which continuous hinge matches that?
The BEST 663HD is a heavy duty continuous hinge built for 3/32 inch inset doors and carries a 90 minute UL fire rating. The ABH A111WT is supplied with a 1/8 inch door inset across its 79, 83, 85, 95 and 120 inch lengths, so inset is the deciding dimension between the two: confirm the gap the opening actually has before ordering either.
10) For a behavioral health or detention room, is the ABH A111WT the right continuous hinge?
For an anti-barricade requirement, the Pemko DSH1000 is an anti-barricade continuous hinge with 100-degree bidirectional operation and Grade 1 construction, which lets the door swing out of the room if it is blocked from inside. The ABH A111WT is a wide throw full mortise geared hinge for lead-lined doors and heavy commercial leaves at 450 lbs., a single-direction application. The two solve different problems even though both are Grade 1 continuous hinges.
11) My 90 minute fire rating is on a hollow metal frame - which geared hinges carry that?
The ABH A111WT is approved for metal swinging fire doors up to 90 minutes and wood swinging fire doors up to 60 minutes. On the peer side, the NGP HD5700 full surface, NGP HD5400A half surface and NGP HD1100A concealed hinges are each 10C fire rated 90 minute on hollow metal, and the BEST 663HD and BEST 664HD both carry a 90-minute UL fire rating. The separator between them is mounting style, not the 90 minute metal door rating.
12) How much does a continuous hinge weigh-rate compared to butt hinges, and will it stop my heavy door from sagging?
Sag is the main reason people move to a geared continuous hinge. Instead of three or four butts carrying the load at points, the A111WT distributes weight along the entire length of the door and frame, so the leaf cannot rack the way it does when a top butt starts pulling out of the jamb. It's rated to 450 lbs, and the 83 inch length runs 32 bearings at 3 inch spacing on center to keep the swing smooth under that load.
13) Do I need to specify handing when I order an ABH continuous gear hinge?
Continuous geared hinges are non-handed, so you order by length, inset and finish and the same hinge works left or right hand. That's one of the practical reasons facilities standardize on them across a building: one part number covers every swing, and there's no wrong-hand return to sort out. What you do have to get right is length, the 1/8 inch inset, and finish.
14) What are the alternatives to the ABH A111WT if my door doesn't need the wide throw?
Wide throw exists to gain clearance for thick lead-lined leaves; on a normal 1-3/4 inch commercial door you do not need it and a standard full mortise geared hinge is the simpler order. The Design Hardware FMHD is a heavy duty full mortise geared hinge, and the Pemko FM-RG Series is a Grade 1 aluminum full mortise raised geared hinge with 180 degree swing. For a 1-3/8 inch door, the Pemko FM-SLF short leaf flush is built for that thickness. Where the hinge needs to be out of sight entirely, the NGP HD1100A is a concealed continuous geared hinge in 83 inch.
15) Will an aluminum geared hinge hold up in a high traffic hospital corridor, or should I use steel or stainless?
The aluminum A111WT is BHMA A156.25 Grade 1, which is the highest durability grade for continuous hinges, so aluminum here is not the light-duty choice, it is a heavy duty extrusion carrying 450 lbs. Where stainless makes sense is a wash-down, coastal, or corrosive environment; the BEST 651 is a stainless steel full mortise continuous hinge with hospital tips if that's the driver. The BEST 641 is the steel medium duty equivalent, which is a step down in duty from Grade 1 heavy duty and better suited to lighter interior doors.
16) What continuous hinge should I look at if the hinge needs to be concealed rather than exposed?
The NGP HD1100A is a concealed continuous geared hinge in an 83 inch length, 10C fire rated 90 minute on hollow metal, and listed as Grade 3. The ABH A111WT is a full mortise geared hinge carrying BHMA 156.25 Grade 1, approved for metal swinging fire doors up to 90 minutes and wood swinging fire doors up to 60 minutes. Choose on whether the specification is driving to a concealed profile or to the Grade 1 line.
17) Is there a half surface continuous geared hinge alternative to the ABH A111WT?
Yes. The NGP HD5400A is an 83 inch half surface continuous geared hinge of aluminum alloy construction, 10C fire rated 90 minute on hollow metal. Half surface mounts one leaf to the frame rebate and the other to the door face, where the ABH A111WT is full mortise with both leaves let into the edge and jamb. The ABH is offered in an 83 inch length as well, so the two line up on length if the mounting condition is what you are choosing between.
18) I am standardizing continuous hinges across a facility - can one model cover both the mortised and the surface mounted openings?
Not with a single model, but you can standardize within one brand family. Design Hardware offers heavy duty continuous geared hinges in full mortise, full surface, and full surface offset versions, so the mounting condition changes and the duty level does not. The ABH A111WT covers the mortised side at BHMA 156.25 Grade 1 with 450 lbs. capacity, in 79, 83, 85, 95 and 120 inch lengths, and specifically handles the lead-lined openings that need the extra throw.
19) What finishes does the ABH A111WT come in, and can I match it to existing aluminum storefront?
Three finishes: clear anodized aluminum, dark bronze, and black, and each is available in all five lengths from 79 to 120 inches. Clear anodized is the standard match for mill finish aluminum storefront and most hollow metal painted openings; dark bronze matches bronze anodized storefront. The anodizing is applied after machining, so cut edges and screw holes are covered rather than exposed bare aluminum.
20) Does a continuous hinge actually improve door security over butt hinges?
It removes the target. Because the geared hinge runs the full height of the opening, there is no gap left between door and frame along the hinge edge for a pry bar to get into, and no individual hinge to attack or pull. On butt hinges the load and the vulnerability sit at three or four points; here it is a continuous line. That, plus the 450 lb capacity, is why these get specified on secure rooms and shielded facilities.
How fast can I get the ABH A111 WT HD079 C delivered?
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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 ABH A111 WT HD079 C come with a warranty?
Absolutely. The ABH A111 WT 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 A111 WT HD079 C?
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