ABH A460HD Heavy Duty Aluminum...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$305.00
$299.71
ABH A460HD Heavy Duty Aluminum Continuous Gear Hinge Half Surface 450 lbs Capacity

ABH A460HD Heavy Duty Aluminum Continuous Gear Hinge Half Surface 450 lbs Capacity

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Model: A460 HD079 C
$305.00
$299.71
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$305.00
$299.71
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ABH A460HD Heavy Duty Aluminum Continuous Gear Hinge Half Surface 450 lbs Capacity

Professional Half Surface Continuous Hinge Solution

The ABH A460HD Heavy Duty Aluminum Continuous Gear Hinge delivers professional-grade performance for commercial door applications requiring superior weight capacity and alignment control. This half surface design accommodates doors up to 450 lbs with a maximum 48" door width and 9/32" door inset configuration. BHMA Grade 1 certified construction ensures reliable operation while the continuous design eliminates common alignment problems and provides enhanced security by closing the gap between door and frame.

Professional Features & Benefits

  • Heavy-Duty Weight Capacity: Supports doors up to 450 lbs with 48" maximum door width for demanding commercial applications.
  • Precision Door Inset: 9/32" door inset specification ensures proper fit and alignment in half surface installations.
  • BHMA Grade 1 Certification: Meets BHMA 156.25 Grade 1 standards for commercial-grade durability and performance.
  • Fire Rating Compliance: Approved for metal swinging fire doors up to 90 minutes and wood swinging fire doors up to 60 minutes.
  • Continuous Weight Distribution: Full-length design eliminates door binding and sagging by evenly distributing weight throughout the entire door and frame.
  • Enhanced Security Design: Eliminates gap between door and frame to prevent prying attempts and unauthorized access.
  • No Mortising Required: Surface-applied installation eliminates the need for door or frame mortising while covering old butt hinge cut-outs.
  • Professional Fastener System: Includes 12-24 X 3/4" undercut self drilling, thread-forming tek machine screws for frame and 1/4-20 sex bolts and shoulder bolts for door mounting.

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: Half Surface
  • Keyed: N/A
  • Keyed Function: N/A
  • PDF:A460HD Aluminum Continuous Gear Hinges Half Surface: https://zensupply.com/content/pdf/abh/0000141_a460_aluminum_geared_hinge_02.pdf
  • PDF:Aluminum Continuous Geared Hinge Cross Reference Chart: https://zensupply.com/content/pdf/abh/0000406_cross_reference.pdf
  • PDF:Aluminum Continuous Geared Hinge Door Clearance Chart: https://zensupply.com/content/pdf/abh/0000383_aluminum_cont_geared_hinge_door_clearance_chart_squared_edged_pg6_rev.pdf
  • PDF:BHMA GRADE 1: https://zensupply.com/content/pdf/abh/0000339_bhma_grade_1_for_hinges_compressed.pdf
  • PDF: A450HD & A460 Aluminum Continuous Gear Hinges Half Surface - Cut Sheet: https://zensupply.com/content/pdf/abh/0000199_a450_a460.pdf
  • Product Category: Door Hinges and Pivots
  • Product Group: Door Hinges and Pivots
  • Product Model: A460HD
  • Product Subgroup: Continuous Hinges
  • Product Type: Continuous Hinges
  • Series: A460HD Series
  • Subcategory: Half 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 A460HD continuous hinges deliver professional-grade reliability with heavy-duty aluminum construction rated for 450 lbs door weight capacity and BHMA Grade 1 certification. The anodized-after-machining process and templated hole patterns ensure consistent performance over time. Engineered for demanding commercial applications where dependable performance and enhanced security 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:
Half Surface Model
Commercial/Residential:
Commercial
Hinge Type:
Half Surface
Keyed:
N/A
Keyed Function:
N/A
Series:
A460HD Series
BAA Qualified:
Yes
Product Model:
A460HD
Product Category:
Door Hinges and Pivots
Department:
Door Hardware

ABH A460 HD079 C – Frequently Asked Questions

1) What does half surface mean on a continuous geared hinge, and when do I use it instead of full mortise or full surface?
Half surface means one leaf mounts to the face of the door and the other leaf mortises into the frame rabbet. It is the option when the frame is already prepped for hinges but you do not want to machine the door, so it is common on retrofits where the door face can be worked but the door edge cannot. Full mortise (like the Design Hardware FMHD) hides the hinge in both the door edge and frame rabbet for the cleanest look and needs both prepped. Full surface (Design Hardware FSHD, BEST 664HD) applies to the face of both door and frame with no mortising at all, which is the easiest install on an existing opening but leaves the hinge visible on both sides.
2) My door has a 9/32 inch inset from the frame. Is that what the A460HD is built for?
That is exactly the geometry it is cut for. Every A460HD is a 9/32 inch door inset hinge, across all four lengths and all three finishes. Door inset on a geared continuous hinge is the gap between the door face and the frame face, and the gear geometry is machined to that dimension, so it is not adjustable in the field. If your opening measures a different inset, this is the wrong model number. The BEST 663HD, for instance, is built for a 3/32 inch inset, and the NGP HD5700 full surface hinge is a 1/16 inch inset unit.
3) Will an ABH continuous hinge cover the old butt hinge cutouts on my existing frame?
That is one of the main reasons to go to a continuous hinge on a retrofit. The A460HD is surface applied on the door side, so no mortising is required and the full length leaf covers the old butt hinge cut-outs in the door face. It also closes the gap between door and frame along the full height of the opening, which removes the pry point that separate butt hinges leave behind. Worth noting: it is a half surface hinge, so the frame leaf still goes into the frame rabbet, which is normally where the old butts were anyway.
4) I need a continuous hinge for a 48 inch wide door. Is the A460HD wide enough, or do I need something else?
48 inches is the ceiling, not the comfortable middle. The A460HD is rated to a maximum 48 inch door width at up to 450 lbs, so a 48 inch leaf is at the edge of the published range and anything wider is outside it. Wide doors put more leverage on the hinge than heavy ones do, so if your opening runs past 48 inches you need a different hinge, not a longer version of this one.
5) For a 90 minute rated wood door, does the ABH A460HD apply or should I look at another hinge?
Check the substrate. The ABH A460HD is approved for metal swinging fire doors up to 90 minutes and wood swinging fire doors up to 60 minutes. The BEST 663HD and BEST 664HD are heavy duty continuous hinges with a 90 minute UL fire rating, and the NGP HD5400A, HD5700 and HD1100A carry a 10C fire rating of 90 minutes on hollow metal. If the door in question is wood at a 90 minute rating, the A460HD wood approval stops at 60 minutes, so verify the hinge listing against the door label before committing.
6) Which continuous geared hinges besides the ABH A460HD are BHMA Grade 1?
The Pemko CFM84SLF-HD1 84 inch full mortise short leaf flush hinge, the Pemko FM-RG Series aluminum full mortise raised geared hinge, the Pemko FM-SLF short leaf flush hinge and the Pemko DSH1000 anti-barricade hinge are all Grade 1. The ABH A460HD meets BHMA 156.25 Grade 1 as well. If a facility spec calls for Grade 1 continuous hinges across an entire building, all of these clear that line, and the choice comes down to mounting type: the A460HD is half surface while the Pemko units listed are full mortise.
7) The door is prepped for a full mortise hinge, not half surface. What replaces the ABH A460HD?
Go to a full mortise continuous geared hinge instead. 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 hinge with a 180 degree swing. The A460HD is a half surface hinge, meaning one leaf mounts to the frame face while the other mortises to the door edge, so it will not drop into a door and frame already machined for full mortise. Confirm which prep the opening carries before ordering either way.
8) What do I use if the frame face has no room and the hinge has to mount fully to the surface of both door and frame?
A full surface hinge is the one to specify. The BEST 664HD is a heavy duty full surface continuous geared hinge with a 90 minute UL fire rating, the Design Hardware FSHD is a heavy duty full surface continuous geared hinge, and the NGP HD5700 is an 83 inch full surface geared hinge with a 1/16 inch door inset for 1-3/4 inch to 2-1/4 inch doors. The ABH A460HD is half surface, so part of it still sits on the door edge; a full surface hinge applies to the faces of both door and frame and covers existing butt hinge cut-outs on both.
9) My doors are 3/32 inch inset, not 9/32. Is there a continuous hinge for that?
Yes. The BEST 663HD is a heavy duty continuous hinge built for 3/32 inch inset doors and carries a 90 minute UL fire rating. Door inset is the gap between the door edge and the frame rabbet, and the geared hinge is machined for one inset value. The ABH A460HD is built to a 9/32 inch door inset across all of its lengths, so measure the existing inset first and match the hinge to it rather than to the door width.
10) We need a continuous hinge for a behavioral health or detention door that cannot be barricaded. Does the ABH A460HD do that?
No. For that condition the Pemko DSH1000 is the anti-barricade continuous hinge, with 100 degree bidirectional operation and Grade 1 construction, so a door blocked from one side can still be swung the other way. The ABH A460HD is a standard-swing heavy duty half surface hinge for 450 lb commercial doors and has no bidirectional function. In healthcare and correctional openings where staff must gain entry against an obstruction, that bidirectional swing is the deciding feature.
11) I need a continuous hinge longer than 84 inches for a tall door. What are my options?
The ABH A460HD is offered in 95 inch and 120 inch lengths in addition to 79, 83 and 85 inch, all at a 9/32 inch door inset and in Black, Clear Anodized Aluminum and Dark Bronze. Among the alternatives, the Pemko CFM84SLF-HD1 is an 84 inch full mortise Grade 1 hinge, and the NGP HD5400A and HD5700 are 83 inch units. For a tall opening over seven feet, the 95 inch and 120 inch A460HD lengths are the ones that run the full leaf height.
12) Do the mounting screws come with the ABH A460HD, or do I need to order fasteners separately?
Fasteners are included. The frame leaf mounts with 12-24 x 3/4 inch undercut self drilling, thread forming tek machine screws, and the door leaf uses 1/4-20 sex bolts and shoulder bolts. The tek screws mean you are not pre-tapping the hollow metal frame, and sex bolts through the door mean the heavy leaf is clamped through the door rather than hanging on screw threads in a thin face sheet, which is what a 450 lb rating needs.
13) What finishes are available on the ABH A460HD, and can I get one to match dark bronze storefront?
Three finishes: clear anodized aluminum, dark bronze, and black. Dark bronze is the usual match for bronze anodized aluminum storefront and entrance framing, and clear anodized matches mill finish aluminum. All three are offered in all five lengths. ABH anodizes after machining, so the cut gear edges are finished rather than left bare.
14) My door edge is already beat up from the old hinges. What continuous hinge should I use if I cannot mortise the door?
A half surface hinge like the A460HD applies to the door face and does not require the door to be mortised, so a chewed up door edge is not a problem on the door side. If the frame rabbet is also unusable, step up to a full surface hinge instead, where both leaves apply to the face: the Design Hardware FSHD and BEST 664HD are heavy duty full surface geared hinges, and the FSOHD is the full surface offset version for openings that need the door to swing clear of a wall or trim.
15) Is a continuous geared hinge like the ABH A460HD worth it over standard butt hinges on a high traffic entrance?
On an entrance that cycles all day, the failure mode with butt hinges is the door sagging out of alignment because all the weight is concentrated at three or four points on the edge. A continuous geared hinge distributes the weight along the whole door and frame, which is what stops the binding and sagging. The A460HD is rated for commercial use at 450 lbs and Grade 1, and the full length leaf also closes the door-to-frame gap, which removes an easy pry point on an exterior or tenant entrance. That security benefit is why property managers and integrators specify them on street facing doors as much as for the durability.
16) I am standardizing hinges across a building. Does handing matter when I order the ABH A460HD?
Continuous geared hinges are non-handed, so one part number covers both left and right hand doors. What you do have to match per opening is length to door height, the 9/32 inch door inset, and door weight and width against the 450 lb and 48 inch limits. For a fleet of openings that means you can usually standardize on one or two lengths and one finish, which is why these get specified across whole facilities rather than door by door.
17) What is the difference between the ABH A460HD and a Pemko full mortise continuous hinge like the FM-RG?
Mounting style is the real difference. The Pemko FM-RG Series is a Grade 1 aluminum full mortise raised geared hinge with a 180 degree swing, which means both the door edge and the frame rabbet get machined and the hinge sits recessed. The A460HD is half surface: the door leaf applies to the door face, so the door itself needs no mortising. Choose full mortise on new doors or where appearance matters on both faces; choose half surface when you are hanging a heavy leaf on an existing door you do not want to machine. Both are Grade 1.
18) I have a 1-3/8 inch door. Does the ABH A460HD work, or is there a better hinge?
For a 1-3/8 inch door, the Pemko FM-SLF short leaf flush continuous geared hinge is built specifically for that door thickness with Grade 1 construction. The ABH A460HD is a heavy duty half surface hinge carrying a 450 lb door in lengths from 79 to 120 inch, which suits the thicker heavy commercial doors that weight class implies. Thin doors want the short leaf flush geometry so the leaf does not overhang the stile.
19) The opening has a beveled or offset condition where a flush surface hinge will not sit. What continuous hinge handles that?
The Design Hardware FSOHD is a full surface offset heavy duty continuous geared hinge, built for surface applications where the door and frame faces are not in the same plane. The ABH A460HD is a flush half surface hinge set to a 9/32 inch door inset, which assumes a standard rabbeted frame condition. Where the frame face is offset from the door face, the offset geometry of the FSOHD is what closes that difference.
20) Is the NGP HD1100A a drop-in alternative to the ABH A460HD?
They serve different mounting conditions. The NGP HD1100A is a concealed continuous geared hinge in an 83 inch length, Grade 3, with a 10C fire rating of 90 minutes on hollow metal. Concealed means the hinge sits within the door and frame and is not visible when the door is closed. The ABH A460HD is a surface-applied half surface hinge that meets BHMA 156.25 Grade 1 and carries 450 lbs. Where appearance drives the choice, the HD1100A hides; where the job is covering old butt hinge cut-outs on an existing opening without mortising, the half surface A460HD is the form that does it.
How fast can I get the ABH A460 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 A460 HD079 C come with a warranty?
Absolutely. The ABH A460 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 A460 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
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