Hager 790-900 Concealed Leaf C...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$628.38
$484.98
Hager 790-900 Concealed Leaf Continuous Hinge, 1/8” Inset

Hager 790-900 Concealed Leaf Continuous Hinge with 1/8" Inset - 304 Stainless Steel

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Model: 790-900 83 US32D
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$628.38
$484.98
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Hager 790-900 Concealed Leaf Continuous Hinge with 1/8" Inset - 304 Stainless Steel

Heavy-Duty Concealed Continuous Hinge for Commercial Applications

The Hager 790-900 concealed leaf continuous hinge delivers professional-grade performance with 14 gauge Type 304 stainless steel construction and 1/8" inset design. Rated for doors up to 300 pounds and 10'-0" maximum length, this ANSI A156.26 Grade 1 certified hinge accommodates maximum door thickness of 1-3/4" with dual 6/6 nylon bearings between each knuckle for smooth operation.

Professional Features & Benefits

  • Heavy-Duty Load Capacity: Supports doors up to 300 pounds with ANSI A156.26 Grade 1 certification for 150-pound doors and Grade 2 for 300-pound doors.
  • Premium Stainless Steel Construction: 14 gauge Type 304 stainless steel provides exceptional corrosion resistance and durability for demanding commercial environments.
  • Concealed Leaf Design: 1/8" (3.2 mm) inset configuration with concealed leaf construction offers clean aesthetics and enhanced security.
  • Dual Bearing System: Dual 6/6 nylon bearings between each knuckle ensure smooth, quiet operation throughout the door's service life.
  • Flexible Door Compatibility: Works with beveled (non-hinge side) or square edge (hinge side) doors of any material up to 1-3/4" thickness.
  • Fire Rating Compliance: Approved for up to 3-hour metal door applications and 90-minute wood composite door installations.
  • Multiple Length Options: Available in standard lengths of 79", 83", 85", 95", and 119" with custom lengths available for specific applications.
  • Electric Modification Ready: Compatible with Power Transfer Preparation (EPT 2 or EPT 10), Exposed Electric Switches (E1S), and Electric Through-Wire (ETW) options.

Technical Specifications

  • Certifications: ANSI A156.26 Grade 1 for 150-pound doors, UL
  • Clearance: 7/32" hinge side, Plus standard lockside clearance
  • Commercial/Residential: Commercial
  • Door Reinforcement: Wood - None required up to 200 lbs. For metal doors, a 1/8" (3 mm) thick reinforcement plate is recommended along the hinge edge for proper thread engagement of the adjustment studs.
  • Electric Modifications: Power Transfer Preparation (EPT 2) or (EPT 10), Exposed Electric Switches (E1S), Electric Through-Wire (ETW)
  • Fastener Size: #10-24 x 5/8" S/SDril-Kwik® (metal frame), #10-16 x 1-1/4" S/SType AB (wood door)
  • Finishes: US32D
  • Fire Rating: Up to 3 hr. metal and 90 min. wood composite
  • Length: 79", 83", 85", 95", 119"
  • Length Options: Standard and Custom
  • Material: 14 Ga. (0.075") Type 304 Stainless Steel
  • Maximum Door Length: 10'-0"
  • Maximum Door Thickness: 1-3/4"
  • Maximum Door Weight: 300 lbs
  • Notes: Any nonstandard length hinge may require a custom hole pattern based on the requested length. Consult Hager Companies to address the field prep for the doors and frames.
  • Optional Features: Lead lined hole pattern, Tamper Resistant Hospital Tips (HT), Sheared leaf, Raised Barrel (SWAGED), Wide Throw, Security Studs, Dutch Door Prep (DUTCH)
  • Special Features: Dual 6/6 Nylon bearings between each knuckle. May be used with beveled (non-hinge side) or square edge (hinge side) doors. 1/8" (3.2 mm) inset.
  • Subcategory: Continuous Geared Hinges

Installation & Operation

  1. Review manufacturer specifications and verify door preparation requirements including door thickness up to 1-3/4", maximum weight of 300 pounds, and handing compatibility.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces, ensuring proper 1/8" inset alignment.
  3. Prepare door and frame by drilling required holes using #10-24 x 5/8" stainless steel fasteners for metal frames or #10-16 x 1-1/4" Type AB fasteners for wood doors.
  4. Install reinforcement as needed - no reinforcement required for doors up to 200 pounds, but 1/8" thick reinforcement plate recommended for metal doors along hinge edge.
  5. Mount hinge ensuring proper clearance of 7/32" on hinge side plus standard lockside clearance for smooth operation.
  6. Test hinge operation to verify proper function and alignment throughout full range of motion. Refer to manufacturer documentation for complete installation details and custom length specifications.

Professional Applications

  • Commercial Office Buildings
  • Healthcare Institutions
  • Educational Facilities
  • Government and Municipal Buildings
  • Industrial and Warehouse Facilities
  • High-Security Applications
  • Fire-Rated Door Assemblies

Why Choose Hager Quality?

Hager continuous hinges deliver professional-grade reliability with 14 gauge Type 304 stainless steel construction rated for doors up to 300 pounds. ANSI A156.26 Grade 1 certification and fire ratings up to 3 hours for metal doors ensure code compliance and long-term performance. Engineered for demanding commercial applications where dependable operation and security are essential.

Hager's Roton® continuous geared hinge distributes door weight along the full hinge length, minimizing lateral wear in high-traffic applications.

Product Specs

Subcategory:
Continuous Geared Hinges
Product Group:
Door Hinges and Pivots
Product Subgroup:
Continuous Hinges
Product Type:
Concealed Hinge
Commercial/Residential:
Commercial
Product Model:
790-900
Product Substrate:
304 Stainless Steel
Product Category:
Door Hinges and Pivots
Department:
Door Hardware

Hager 790-900 83 US32D – Frequently Asked Questions

1) Will the Hager 790-900 continuous hinge work on a 1-3/4 inch commercial door?
Yes. The 790-900 concealed leaf geared hinge tops out at 1-3/4 inch door thickness, which is the standard commercial door. Thicker doors than that are outside what this hinge is prepped for. Door weight is the other limit: up to 300 pounds, and the door can be up to 10 feet tall. It mounts to beveled doors (bevel on the non-hinge side) or square edge doors on the hinge side, and the door can be any material.
2) Can I use a Hager 790-900 continuous hinge on a fire rated door?
Yes, within stated limits: up to 3 hour metal door openings and 90 minute wood composite doors. The hinge is also UL and carries ANSI A156.26 Grade 1 for 150 pound doors, Grade 2 at 300 pounds. That combination is what facility and institutional specs usually call for on rated stair and corridor openings.
3) Do I need a reinforcement plate in the door for a Hager 790-900 hinge?
On wood doors, no reinforcement is required up to 200 pounds. On metal doors, a 1/8 inch (3 mm) reinforcement plate along the hinge edge is recommended so the adjustment studs get proper thread engagement. Skipping it on a hollow metal door is how the studs end up with too little material to bite into.
4) What clearance does a Hager 790-900 concealed leaf hinge need at the door edge?
Figure 7/32 inch on the hinge side, plus your standard lockside clearance. The 790-900 is a 1/8 inch (3.2 mm) inset design, meaning the door sits inset from the frame face by that amount rather than flush, so the hinge side gap has to be cut to suit. If the existing opening is set up flush or full mortise, the door edge and frame prep will need to be reworked.
5) Can I run power through a Hager 790-900 hinge for an electrified lock or card reader?
Yes. The 790-900 can be ordered prepped for power transfer, either EPT 2 or EPT 10, and it also supports exposed electric switches (E1S) and electric through-wire (ETW). Those are order-time modifications, not field additions, so the electrified option has to be called out when the hinge is bought along with the length.
6) What fasteners come into play installing a Hager 790-900 continuous hinge?
Two sizes, depending on what you are screwing into. Metal frames take #10-24 x 5/8 inch stainless Dril-Kwik. Wood doors take #10-16 x 1-1/4 inch stainless Type AB. Templates from the manufacturer set the hole locations, and the 1/8 inch inset has to be held when you mark them.
7) Why use a continuous geared hinge instead of three butt hinges on a high traffic door?
A butt hinge carries the whole door on three or four points, and in a school or hospital corridor those points are where the screws pull and the door starts to sag. The Roton geared hinge runs the full height of the opening and spreads the load along its entire length, which cuts the lateral wear that kills butt-hung doors. It also removes the exposed knuckle gap. The tradeoff is prep: this is a full-height edge mount at a 1/8 inch inset, not three mortises.
8) Is the Hager 790-900 hinge stainless steel all the way through, and will it hold up outdoors or in a pool area?
Construction is 14 gauge (0.075 inch) Type 304 stainless steel, not plated steel, so the corrosion resistance is in the base metal rather than a coating that can wear off at the traffic points. The single finish offered is 630 satin stainless, listed as US32D. That build is what makes it usable in wet, coastal or chemically aggressive commercial environments.
9) Does the Hager 790-900 continuous hinge need to be handed when I order it?
Handing is part of the door prep verification for this hinge, so it gets confirmed along with thickness and weight before the order. A concealed leaf geared hinge mounts into the hinge edge and frame rabbet, so left and right hand openings are not interchangeable the way a symmetrical surface hinge might be. Confirm the swing on each opening before you commit a full building's worth.
10) What options can I add to a Hager 790-900 hinge for hospital or detention type openings?
The list runs to tamper resistant hospital tips (HT), security studs, a lead lined hole pattern for imaging suites, sheared leaf, raised barrel (SWAGED), wide throw, and Dutch door prep (DUTCH). Wide throw is the one to look at when the door has to swing clear of a deep trim or an obstruction at the frame face, and the lead lined pattern matters on radiology doors where the shielding cannot be interrupted by fastener holes.
11) Will a Hager 790-900 geared hinge squeak or bind over time?
There are dual 6/6 nylon bearings between every knuckle along the full length, so the leaves ride on bearing surfaces rather than metal on metal. That is the mechanism behind the smooth, quiet swing on a heavy door, and it is why these get specified on corridor openings that cycle all day.
How fast can I get the Hager 790-900 83 US32D 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 Hager 790-900 83 US32D come with a warranty?
Absolutely. The Hager 790-900 83 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 Hager 790-900 83 US32D?
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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