McKinney MK80 4-3/8" x 1-1/8" ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$65.04
McKinney MK80 4-3/8" x 1-1/8" Concealed Hinge

McKinney MK80 4-3/8" x 1-1/8" Concealed Hinges

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Model: MK8026D
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$65.04
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McKinney Concealed Hinge MK80

The MK80 coverless concealed hinge for wood or hollow metal doors with a 1-3/8″ minimum thickness, are non-handed.

Refined and minimal, the McKinney Concealed Hinges feature 3-Dimension adjustability for easy installation and door alteration.

Features

  • For wood or hollow metal doors that are a minimum of 1-3/8″ thick
  • No covers
  • 3-dimensional adjustability
  • Zinc alloy base material
  • 180° opening angle
  • UL Listed

Benefits

  • Virtually disappear from view when the door is closed
  • Provides aesthetic continuity when door is open
  • Refined and minimal
  • Easy installation and door alteration
  • 20-minute fire rating hollow metal, steel covered composite and wood core fire doors
  • Greater hinge capacity than the MK4001A

Specifications

  • Base material: Zinc alloy
  • Overall hinge length: 111.5mm (4.39”)
  • Hinge width: 29mm (1.14”)
  • Non-handed
  • Opening angle: 180 degrees
  • 3-Dimensional adjustability:
    – Vertical + /- 2 mm
    – Horizontal + /- 2 mm
    – Depth + /- 1 mm
  • For wood or hollow metal doors with wood or metal frames
  • UL Listed for hollow metal, steel covered composite and wood core fire doors rated 20 minutes

Manufacturer Resources

Product Specs

Subcategory:
Door Pivots
Features:
Two Thrust Bearings for Vertical Loads; Roller Bearing for Lateral Support; Listed for Both Hollow Metal or Steel Covered Composite Fire Doors Rated Up to 3 Hours; Listed for Wood Core Type Fire Doors Rated 20 Minutes
Product Group:
Door Hinges and Pivots
Product Subgroup:
Pivots and Pivot Sets
Product Type:
Concealed Hinges
Tags:
concealed hinges for 1 1 2 thick
Product Model:
PH-4
Product Category:
Door Trim & Accessories
Department:
Door Hardware

McKinney MK8026D – Frequently Asked Questions

1) Will the McKinney MK80 concealed hinge work on a 1-3/8 inch door?
Yes. The MK80 is made for wood or hollow metal doors with a minimum thickness of 1-3/8 inches, so a standard 1-3/8 inch interior door is the thinnest it goes on. Anything thicker, including the common 1-3/4 inch commercial leaf, is fine. It mounts to wood or metal frames, and it is coverless, so nothing shows on the edge when the door is closed.
2) Do I need to specify handing when ordering the McKinney MK80 concealed hinge?
No handing to specify. The MK80 is non-handed, so the same hinge works on a left or right hand door. The only thing you pick is finish: 626 satin chrome, 630 satin stainless steel, or matte black.
3) How much adjustment does the McKinney MK80 concealed hinge give you after the door is hung?
Three-way adjustment, and the range is small but enough to true up a reveal: plus or minus 2mm vertical, plus or minus 2mm horizontal, and plus or minus 1mm in depth. That means you can lift a sagging door, shift it side to side in the frame, and pull the leaf in or out against the stop without pulling the door off. Useful on a fleet of units where doors move with the seasons.
4) What concealed hinge should I use on an X-ray room door that needs lead lining?
Use one of the lead lined continuous geared hinges rather than a McKinney MK80. The Hager 780-224LL is a concealed leaf continuous geared hinge with lead lining for X-ray room doors, and the Hager 780-226LL is the lead lined version for the same application; both carry a standard duty level. The MK80 is a coverless concealed hinge in a zinc alloy base material with no lead lining, so it does not address radiation leakage at the hinge edge of a shielded opening.
5) Is the Hager 780-224HD continuous geared hinge a drop-in replacement for a McKinney MK80 concealed hinge?
No - the two are different hinge types even though both are described as concealed. The McKinney MK80 is a coverless concealed hinge that mortises into the door and frame in individual leaves, is non-handed, offers 3-dimensional adjustability of +/- 2 mm vertical, +/- 2 mm horizontal and +/- 1 mm depth, and swings to 180 degrees. The Hager 780-224HD is a heavy duty concealed leaf continuous geared hinge for 1-3/4 inch doors, which runs the full height of the opening in one piece and requires the door and frame edges to be prepped for a continuous hinge rather than for discrete pockets. Swapping one for the other means re-prepping the opening, not just changing hardware.
6) How far will a door on McKinney MK80 concealed hinges swing open?
180 degrees. That matters with concealed hinges, since some invisible hinges stop short and block a door from laying back flat against a wall or an adjacent leaf. The MK80 opens the full 180 and stays out of sight when the door is closed.
7) Is the McKinney MK80 concealed hinge strong enough for a heavier door than the MK4001A?
It carries more. McKinney rates the MK80 with greater hinge capacity than the MK4001A, and the internals are built for it: two thrust bearings taking the vertical load and a roller bearing handling lateral support. The base material is zinc alloy.
8) Concealed hinge or continuous geared hinge, which should I use on a high traffic door?
Different jobs. A concealed hinge like the McKinney MK80 is chosen for looks, it disappears when the door is closed and gives 3-dimensional adjustability, and it is listed to 20 minutes on fire doors. A concealed leaf continuous geared hinge spreads the load down the full height of the door and is the usual pick for abuse-level traffic. ZenSupply carries the Hager 780-224HD in heavy duty for 1-3/4 inch doors and the Hager 780-226HD in heavy duty for 2 inch doors. Go continuous where the door is getting hammered; go MK80 where the appearance of the opening is the point.
9) Will a McKinney MK80 concealed hinge match the satin chrome hardware already on my other doors?
626 satin chrome is one of the three finishes offered, alongside 630 satin stainless steel and matte black. If the rest of the openings in the building are specified 626, the MK80 lines up on the same BHMA finish number. Bear in mind the hinge is coverless and largely out of sight with the door closed, so the finish reads mainly when the door is standing open.
10) My doors are 2 inches thick - can I still use the McKinney MK80 concealed hinge?
The McKinney MK80 is specified for wood or hollow metal doors with a minimum thickness of 1-3/8 inches, with an overall hinge length of 4.39 inches and a width of 1.14 inches, so confirm the leaf pocket depth works in a 2 inch door leaf before committing. Where a thicker door calls for a continuous hinge instead, the Hager 780-226HD is a heavy duty concealed leaf continuous geared hinge specifically for 2 inch thick doors, while the Hager 780-224HD covers 1-3/4 inch doors.
11) For a high traffic opening, is a heavy duty continuous geared hinge a better choice than the McKinney MK80?
They solve the load question differently. The Hager 780-224HD and Hager 780-226HD are both rated heavy duty, and a continuous geared hinge distributes the door weight along the entire height of the opening instead of concentrating it at individual hinge points. The McKinney MK80 carries the load through two thrust bearings for vertical loads and a roller bearing for lateral support, and it is listed for hollow metal or steel covered composite fire doors rated up to 3 hours and wood core fire doors rated 20 minutes. If the opening is a fire rated hollow metal door where you want the hinge to disappear when the door is closed, the MK80 addresses that; if it is a tall or frequently abused door where you want continuous support and are prepping for a full height hinge, the 780 heavy duty models address that.
12) Which concealed hinge lets me match finishes across a set of doors?
The McKinney MK80 concealed hinge is offered in 626 satin chrome, 630 satin stainless steel, and matte black, so it can be specified to match lever and pull finishes across a run of openings. The Hager 780 series comparables - the 780-224HD and 780-226HD heavy duty concealed leaf continuous geared hinges - are continuous geared hinges whose concealed leaf sits in the hinge edge of the opening rather than presenting a decorative face, so finish coordination is not the deciding factor there.
How fast can I get the McKinney MK8026D 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 McKinney MK8026D come with a warranty?
Absolutely. The McKinney MK8026D 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 McKinney MK8026D?
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 McKinney MK8026D 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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