ABH A270HD/A270LL Aluminum Con...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$189.00
$84.78
ABH A270HD/A270LL Aluminum Continuous Gear Hinges - BHMA Grade 1 Heavy Duty Full Mortise

ABH A270HD/A270LL Aluminum Continuous Gear Hinges - BHMA Grade 1 Heavy Duty Full Mortise

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Model: A270HD C79
$189.00
$84.78
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$189.00
$84.78
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ABH A270HD/A270LL Aluminum Continuous Gear Hinges - BHMA Grade 1 Heavy Duty Full Mortise

Professional Heavy-Duty Continuous Hinge Solution

The ABH A270HD/A270LL Aluminum Continuous Gear Hinges deliver BHMA Grade 1 certified performance for commercial door applications requiring maximum durability and security. Designed for 2" thick doors with 48" maximum door width, these full mortise hinges support up to 450 lbs door weight (A270HD) or up to 1,000 lbs for lead-lined doors (A270LL). The full concealed, heavy duty construction eliminates door binding and sagging while providing enhanced security by eliminating gaps between door and frame.

Professional Features & Benefits

  • Heavy-Duty Weight Capacity: A270HD supports up to 450 lbs door weight, while A270LL handles up to 1,000 lbs for lead-lined applications with specialized staggered hole pattern.
  • Door Compatibility: Designed for 2" thick doors with 48" maximum door width for versatile commercial applications.
  • BHMA Grade 1 Certification: BHMA 156.25 Grade 1 certified construction ensures professional-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.
  • Enhanced Security Design: Full concealed construction eliminates gaps between door and frame, preventing prying attempts and unauthorized access.
  • Even Weight Distribution: Continuous hinge design distributes door weight throughout the entire length, preventing common alignment problems like binding and sagging.
  • Surface Applied Installation: No mortising of door or frame required, simplifying installation while covering old butt hinge cut-outs.
  • Standard Length Options: Available in 79", 83", 85", 95" and 120" standard 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
  • PDF:A270HD/A270LL & A410HD/A410LL Aluminum Continuous Gear Hinges Full Mortise - Cut Sheet: https://zensupply.com/content/pdf/abh/0000195_a270_a410.pdf
  • PDF:A270HD/A270LL Aluminum Continuous Gear Hinges Full Mortise: https://zensupply.com/content/pdf/abh/0000571_a270_aluminum_geared_hinge_04.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/0002339_bhma_grade_1_for_hinges_compressed.pdf
  • PDF: Aluminum Continuous Geared Hinge Cross Reference Chart: https://zensupply.com/content/pdf/abh/0000406_cross_reference.pdf
  • Product Category: Door Hinges and Pivots
  • Product Group: Door Hinges and Pivots
  • Product Model: A270HD / A270LL
  • Product Subgroup: Continuous Hinges
  • Product Type: Continuous Hinges
  • Series: A270 Series
  • 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 A270HD/A270LL continuous hinges deliver professional-grade reliability with anodized aluminum construction and BHMA Grade 1 certification for demanding commercial applications. The heavy-duty design supports up to 450 lbs (A270HD) or 1,000 lbs (A270LL) door weight while providing enhanced security through full concealed construction. Engineered for demanding commercial applications where dependable performance and fire rating compliance 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 Mortise Hinges
Commercial/Residential:
Commercial
Hinge Type:
Full Mortise
Keyed:
N/A
Keyed Function:
N/A
Series:
A270 Series
BAA Qualified:
Yes
Product Model:
A270HD / A270LL
Product Category:
Door Hinges and Pivots
Department:
Door Hardware

ABH A270HD C79 – Frequently Asked Questions

1) Will the ABH A270 continuous hinge work on a 1-3/4 inch door?
No. The A270HD and A270LL are built for 2 inch thick doors only, which is the single door thickness offered across all 30 orderable combinations. On a standard 1-3/4 inch commercial door you need a hinge sized for that thickness, such as the Pemko FM-RG Series aluminum full mortise geared hinge or the Design Hardware FMHD full mortise heavy duty geared hinge.
2) What is the difference between the A270HD and the A270LL?
Weight capacity and hole pattern. The A270HD carries doors up to 450 lbs. The A270LL uses a staggered hole pattern and is rated to 1,000 lbs for lead-lined doors, the kind you find on X-ray and imaging rooms. Both are ordered from the same size and finish range; the lead-lined version is the "For Lead-Lined Doors: Yes" selection.
3) Can I use this ABH hinge on a 90 minute fire rated metal door?
Yes. The A270 series is approved for metal swinging fire doors up to 90 minutes and wood swinging fire doors up to 60 minutes. If your opening is a wood door needing a 90 minute label, this hinge does not cover it.
4) What is the closest full mortise heavy duty geared hinge equivalent to the ABH A270HD?
The ABH A270HD is a full mortise continuous geared hinge rated heavy duty at BHMA Grade 1. The nearest like-for-like alternates in the same configuration are the Design Hardware FMHD Full Mortise Heavy Duty continuous geared hinge and the Pemko CFM84SLF-HD1, an 84 inch full mortise short leaf flush heavy duty Grade 1 hinge. The Pemko FM-RG Series is also a Grade 1 aluminum full mortise geared hinge, with a raised gear profile and 180 degree swing.
5) The frame will not accept a mortised hinge leaf - what continuous hinge should be used instead of the ABH A270HD?
The A270HD is a full mortise hinge, so both leaves sit in the door and frame edges. Where that prep is not possible, a surface mounted geared hinge is the alternative: the Design Hardware FSHD Full Surface and FSOHD Full Surface Offset heavy duty geared hinges, the BEST 664HD full surface heavy duty geared hinge with a 90 minute UL fire rating, or the NGP HD5700 full surface hinge with 1/16 inch door inset for 1-3/4 inch to 2-1/4 inch doors.
6) Is a BEST 641 or 651 continuous hinge a substitute for the ABH A270HD?
They sit at a different duty level. The A270HD is heavy duty, carrying up to 450 lbs of door weight. The BEST 641 steel full mortise hinge is a standard duty product and both the 641 and the stainless steel BEST 651 are listed at medium duty, and both carry hospital tips. For heavy duty openings in the BEST line the closer match is the 663HD or 664HD, both listed as heavy duty.
7) For a 1-3/8 inch door, what replaces the ABH A270HD?
The A270HD is configured for 2 inch thick doors, so a thinner leaf door needs a different hinge. The Pemko FM-SLF is a short leaf flush continuous geared hinge for 1-3/8 inch doors with Grade 1 construction.
8) Is this ABH hinge Grade 1 certified?
Yes, the A270 series is certified to BHMA A156.25 Grade 1, the top durability tier for continuous hinges. Among comparable full mortise geared hinges, the Pemko FM-RG Series and the Pemko CFM84SLF-HD1 short leaf flush hinge are also listed as Grade 1, while the NGP HD1100A concealed geared hinge is listed as Grade 3.
9) What screws come with the ABH A270 and do I need to drill pilot holes?
It ships with 12-24 x 3/4 inch undercut self drilling, thread forming tek machine screws, so they cut their own threads into hollow metal without separate tapping. Hole locations are templated on every standard length.
10) Will a continuous geared hinge cover the old butt hinge cutouts on my frame?
Yes, that is one of the practical reasons to swap to the A270. It mounts without mortising the door or frame and the continuous leaves cover existing butt hinge cut-outs, so you are not patching or replacing the frame on a door that has started to sag.
11) Do I need a full mortise or a full surface continuous hinge?
Full mortise, which is what the A270 is, sits between the door edge and the frame rabbet and is largely concealed when the door is closed, so it is the choice for new or square edge openings where appearance and a tight gap matter. Full surface mounts to the face of the door and frame and is the choice when the frame edge is damaged or the door has an inset. For a surface application, look at the Design Hardware FSHD full surface heavy duty geared hinge, the FSOHD full surface offset version, or the BEST 664HD full surface geared hinge.
12) Is the ABH A270 acceptable for a federal Buy American job?
Yes. The A270 series is flagged BAA qualified, so it can be specified on projects carrying Buy American Act requirements, which is a common condition on government, municipal and federally funded institutional work.
13) My doors are 450 lbs and getting heavy traffic in a hospital corridor. Is a geared continuous hinge the right call over butt hinges?
Yes, and weight is the reason. The A270HD is rated to 450 lbs and spreads that load along the full height of the door rather than into three or four discrete butt hinges, which is where sag and binding start on high-cycle corridor doors. For lead-lined imaging room doors on the same floor, the A270LL version takes up to 1,000 lbs. Both are commercial-rated products.
14) Which continuous hinge covers a half surface application rather than the ABH A270HD full mortise?
The A270HD mounts full mortise. For a half surface application, where one leaf goes on the face of the door or frame, the NGP HD5400A is an 83 inch half surface continuous geared hinge of aluminum alloy construction, 10C fire rated 90 minute on hollow metal.
15) Can the Pemko DSH1000 be used in place of the ABH A270HD on a lead-lined door?
They answer different problems. The A270LL variant of the A270 series is the lead-lined door option, with a staggered hole pattern supporting up to 1,000 lbs. The Pemko DSH1000 is a Grade 1 anti-barricade continuous hinge with 100 degree bidirectional operation, intended for openings where the door must be able to swing both ways, not for lead-lined weight.
16) Which alternatives to the ABH A270HD carry a 90 minute fire rating?
The ABH A270HD/A270LL is approved for metal swinging fire doors up to 90 minutes and wood swinging fire doors up to 60 minutes. Among the alternatives, the BEST 663HD and BEST 664HD are 90 minute UL fire rated, and the NGP HD1100A, HD5400A and HD5700 are each 10C fire rated 90 minute on hollow metal.
17) What finishes does the ABH A270 hinge come in, and will it match my storefront?
Three finishes across every length: clear anodized aluminum, dark bronze, and black. Clear anodized and dark bronze are the usual matches for aluminum storefront and entrance framing; black suits dark painted hollow metal.
18) Does the ABH A270 improve door security compared to butt hinges?
It closes the gap between door and frame along the full height, which removes the purchase point a pry bar needs, and the full concealed construction leaves nothing exposed to attack when the door is shut. That is the main security argument for it on exterior and tenant-entry openings.
How fast can I get the ABH A270HD C79 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 A270HD C79 come with a warranty?
Absolutely. The ABH A270HD C79 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 A270HD C79?
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 A270HD C79 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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