ABH A500RB Stainless Steel Pin...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$500.00
$491.34
ABH A500RB Stainless Steel Pin and Barrel Continuous Hinge with Raised Barrel for Heavy-Duty Commercial Applications

ABH A500RB Stainless Steel Pin and Barrel Continuous Hinge with Raised Barrel for Heavy-Duty Commercial Applications

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Model: A500RB078-US32D

In Stock (leaves warehouse same day if ordered before 3pm ET)

$500.00
$491.34
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ABH A500RB Stainless Steel Pin and Barrel Continuous Hinge with Raised Barrel for Heavy-Duty Commercial Applications

Professional Full Concealed Continuous Hinge Solution

The ABH A500RB stainless steel pin and barrel continuous hinge delivers heavy-duty performance for commercial door applications requiring 1/8" door inset configuration. This raised barrel model supports doors up to 48" width and 600 lbs. maximum weight with full concealed operation. BHMA 156.25 Grade 1 certified construction provides professional-grade reliability for demanding commercial installations.

Professional Features & Benefits

  • Heavy-Duty Weight Capacity: Supports doors up to 600 lbs. maximum weight for robust commercial applications.
  • Door Width Compatibility: Accommodates doors up to 48" maximum width with 1/8" door inset configuration.
  • Full Concealed Design: Eliminates visible pin points and provides enhanced security by removing gaps between door and frame that prevent prying.
  • Raised Barrel Configuration: A500RB model features raised barrel design for specific installation requirements and enhanced clearance.
  • Fire Rating Compliance: Certified for 20 minutes on wood doors, 90 minutes on hollow metal and composite core wood fire doors, and 3 hours on hollow metal doors.
  • BHMA Grade 1 Certification: BHMA 156.25 Grade 1 certified for commercial-grade performance and reliability standards.
  • Surface Applied Installation: No mortising of door or frame required, simplifying installation and covering old butt hinge cut-outs.
  • Even Weight Distribution: Continuous design eliminates common alignment problems such as door binding and sagging by distributing weight throughout the entire door and frame.

Technical Specifications

  • BAA Qualified: Yes
  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Door Weight: 600
  • Fasteners: 12-24 X 3/4" undercut self drilling, thread forming tek machine screws
  • Keyed: N/A
  • Keyed Function: N/A
  • Product Category: Door Hinges and Pivots
  • Product Finish: 689 - Stainless Steel
  • Product Group: Door Hinges and Pivots
  • Product Model: A500
  • Product Subgroup: Continuous Hinges
  • Product Type: Pin and Barrel Continuous Hinges
  • Series: A500 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 A500RB continuous hinges deliver professional-grade reliability with stainless steel construction and BHMA 156.25 Grade 1 certification for demanding commercial applications. The heavy-duty design supports doors up to 600 lbs. with fire ratings up to 3 hours on hollow metal doors. Engineered for demanding commercial applications where dependable performance and security are essential.

Product Specs

Product Group:
Door Hinges and Pivots
Door Weight:
600
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
Keyed:
N/A
Keyed Function:
N/A
Series:
A500 Series
BAA Qualified:
Yes
Product Model:
A500
Product Finish:
689 - Stainless Steel
Product Category:
Door Hinges and Pivots
Department:
Door Hardware

ABH A500RB078-US32D – Frequently Asked Questions

1) Will the ABH A500RB continuous hinge hold a 500 lb solid core door?
Yes. The A500RB pin and barrel continuous hinge is rated to 600 lbs maximum door weight, so a 500 lb door is inside its range. The continuous design carries that load along the full height of the door and frame rather than at three or four butt points, which is what keeps a heavy door from sagging or binding over time. Door width is the other limit to check: the A500RB is rated to 48 inches maximum width.
2) What door inset does the ABH A500RB require, and what happens if my door gap is different?
The A500RB is built for a 1/8 inch door inset, and that is the only inset it comes in. Inset is the clearance between the door edge and the frame at the hinge side, so it is not adjustable in the field. If your opening is prepped at 3/32 inch, this is the wrong part and you want a hinge cut for that gap, such as the BEST 663HD, which is made for 3/32 inch inset doors. Measure the existing gap before ordering.
3) Can I put a continuous hinge on a fire rated door, and what rating does the ABH A500RB carry?
Fire rated, yes. The A500RB is certified for 20 minutes on wood doors, 90 minutes on hollow metal and composite core wood fire doors, and 3 hours on hollow metal doors. Pick the line that matches your door construction, not the highest number on the sheet, since the 3 hour figure applies only to hollow metal. It is also BHMA 156.25 Grade 1 certified.
4) Do I have to mortise the door and frame to install the ABH A500RB hinge?
No mortising is required. The A500RB is surface applied, which is a real advantage on a retrofit: the leaves cover the old butt hinge cutouts rather than requiring you to fill and re-prep them. It ships with 12-24 x 3/4 inch undercut self drilling, thread forming tek machine screws, so you are drilling and driving into the door and frame rather than routing.
5) Does the ABH A500RB qualify for a Buy American federal job?
Yes, the A500RB is BAA qualified, which is what a government or municipal project spec is asking for when it calls out Buy American Act compliance. It is a commercial grade hinge, BHMA 156.25 Grade 1, in 689 stainless steel.
6) Will the ABH A500RB fix a commercial door that keeps sagging and dragging on the threshold?
That is the classic case for a continuous hinge. A sagging door is usually a butt hinge opening where the load has concentrated on the top hinge and pulled the screws or the frame reinforcement. Swapping to the A500RB distributes the weight along the full door and frame instead, which is what removes the binding and sagging rather than just re-shimming it. Because it is surface applied, it covers the existing butt cutouts, so you are not filling the door edge. Check the door is no more than 48 inches wide and 600 lbs, and that the hinge edge gap is 1/8 inch.
7) Is a geared continuous hinge an equivalent swap for an ABH A500RB pin and barrel hinge?
They are not the same mechanism. The A500RB is a pin and barrel continuous hinge, where the leaves interleave on a continuous pin. The Design Hardware FMHD is a full mortise heavy duty continuous geared hinge, and the Pemko FM-RG is a Grade 1 aluminum full mortise raised geared continuous hinge with 180-degree swing. Both mount full mortise like the A500RB, but geared hinges carry the door on a gear train under a cap channel rather than on a barrel, and the aluminum FM-RG is a different base material than the A500RB's 689 stainless steel. Confirm the prep and the door edge clearance before treating any of them as a drop-in.
8) What should I use if the door edge cannot be mortised for a continuous hinge?
Go to a surface-mounted continuous hinge. The Design Hardware FSHD is a full surface heavy duty continuous geared hinge and the FSOHD is the full surface offset version; the BEST 664HD is a full surface continuous geared hinge with a 90-minute UL fire rating, and the NGP HD5700 is a full surface geared hinge built for 1/16 inch door inset on 1-3/4 inch to 2-1/4 inch doors. Full surface hinges mount to the face of the door and frame instead of into the hinge edge, which is the route when the existing prep or a hollow metal frame will not take a mortise. The A500RB itself is the full mortise pin and barrel configuration.
9) My opening has a 3/32 inch door inset, not 1/8 inch. What continuous hinge fits?
The BEST 663HD is a heavy duty continuous hinge built for 3/32 inch inset doors and carries a 90 minute UL fire rating. Continuous hinge models are cut to a specific door-to-frame inset, so an A500RB, which is configured for 1/8 inch door inset, will not sit correctly on a 3/32 inch opening. Measure the gap between the door edge and the frame rabbet before ordering, since the inset dimension is what determines which model closes the opening without binding.
10) I need a concealed continuous hinge in an 83 inch length. How does the NGP HD1100A compare to the ABH A500RB?
The NGP HD1100A is a concealed continuous geared hinge in 83 inches, heavy duty, 10C fire rated for 90 minutes on hollow metal, and it is a Grade 3 hinge. The A500RB is BHMA 156.25 Grade 1 full concealed pin and barrel construction with fire ratings of 20 minutes on wood doors, 90 minutes on hollow metal and composite core wood fire doors, and 3 hours on hollow metal doors, and it comes in lengths including 83-1/8 inches. If the specification on the drawing calls for Grade 1, the grade difference is the deciding line; if it calls for a concealed geared hinge specifically, the HD1100A is the geared answer.
11) What is the difference between the raised barrel A500RB and the standard A500 continuous hinge?
Both are ABH stainless steel pin and barrel continuous hinges in the A500 Series, and the RB is the raised barrel version. Raising the barrel moves the pivot point out from the face of the door, which gives added clearance at the hinge edge on openings where the standard flush barrel would bind. If your opening has no clearance issue and is prepped conventionally, the standard A500 is the ordinary choice; specify RB when the detail calls for the barrel to stand proud.
12) Does a continuous hinge actually stop a door from being pried at the hinge edge?
That is one of the reasons this type gets specified. The A500RB is a full concealed design, so there are no exposed pin points to attack and no gap left between door and frame along the hinge edge for a bar to get into. On a butt hinge opening, the spaces between the three or four hinges are the weak points. Continuous eliminates them for the full height of the door.
13) Can I standardize a whole building on the ABH A500RB, or do I need different hinges for different openings?
One finish and one inset keep the ordering simple: 689 stainless steel, 1/8 inch inset, five lengths. Where it will not cover you is openings outside 48 inches wide or 600 lbs, doors prepped for a different inset gap, and full surface applications where the frame face is the mounting surface rather than the frame rabbet. For that last case a full surface type such as the Design Hardware FSHD or BEST 664HD is the corresponding part. Everything else on a typical commercial hollow metal or wood door program can run on this one.
14) What is the difference between a half surface and a full mortise continuous hinge for a retrofit?
The NGP HD5400A is an 83 inch half surface continuous geared hinge in aluminum alloy, 10C fire rated 90 minutes on hollow metal. Half surface means one leaf mounts into the door edge and the other applies to the face of the frame, which is the choice when the frame cannot be prepped but the door can. The A500RB is full mortise on both leaves and is surface applied in the sense that no mortising of door or frame is required, so it covers old butt hinge cut-outs. Material also differs: the NGP is aluminum alloy where the A500RB is 689 stainless steel.
15) Will a Pemko DSH1000 anti-barricade hinge work in place of an ABH A500RB?
Only if you actually want the anti-barricade behavior. The Pemko DSH1000 is a Grade 1 anti-barricade continuous hinge with 100-degree bidirectional operation, meaning the door can swing both directions so an occupant cannot block it closed - a behavioral health and detention detail. The A500RB is a conventional single-direction pin and barrel continuous hinge for heavy commercial doors up to 600 lbs. Both are Grade 1 class hardware, but swapping one for the other changes how the door swings, so it is not a like-for-like replacement on a standard office or corridor opening.
16) What continuous hinge suits a 1-3/8 inch door instead of the ABH A500RB?
The Pemko FM-SLF is a short leaf flush continuous geared hinge made for 1-3/8 inch doors with Grade 1 construction. Thinner doors take a narrower leaf, and short leaf flush geometry is what keeps the hinge within a 1-3/8 inch edge. The A500RB is a heavy commercial pin and barrel hinge sized for doors up to 48 inches wide and 600 lbs., which is a heavier leaf than a 1-3/8 inch door typically presents. Confirm the actual door thickness at the hinge edge before ordering either one.
17) For a facility standardizing on Buy American qualified door hardware, which continuous hinges compare to the ABH A500RB?
The A500RB is BAA qualified and BHMA 156.25 Grade 1 in 689 stainless steel, with fire ratings of 20 minutes on wood, 90 minutes on hollow metal and composite core wood fire doors, and 3 hours on hollow metal. Among Grade 1 comparables, the Pemko CFM84SLF-HD1 is a heavy duty Grade 1 full mortise hinge and the Pemko FM-RG is a Grade 1 aluminum full mortise raised geared hinge. For an MRO or government spec, match on grade and on the fire rating the opening requires, then hold the same model across the facility so hinge lengths and fasteners stay consistent across doors.
18) I need 180-degree swing on a heavy commercial door - does that rule out the ABH A500RB?
The Pemko FM-RG series is the one that publishes a 180-degree swing; it is a Grade 1 aluminum full mortise raised geared continuous hinge. The A500RB is a raised barrel pin and barrel hinge in 689 stainless steel, BHMA 156.25 Grade 1, carrying doors up to 600 lbs. Both are raised-profile full mortise designs, so the barrel or gear cap sits proud of the door edge; where the swing arc is written into the specification, the FM-RG is the model that states it. Check wall clearance and any stop or holder on the opening before committing to either.
19) Is the ABH A500RB stainless steel all the way through, or just a stainless finish?
Stainless steel construction, finished 689. That matters on exterior openings, kitchens, natatoriums and healthcare corridors where a plated steel hinge will eventually show corrosion at the barrel. If corrosion resistance is not a driver and you are working to a lighter spec, BEST offers steel and stainless medium duty full mortise continuous hinges, the 641 in steel and the 651 in stainless, both with hospital tips.
How fast can I get the ABH A500RB078-US32D 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 A500RB078-US32D come with a warranty?
Absolutely. The ABH A500RB078-US32D 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 A500RB078-US32D?
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