Hager 1251 Full Mortise Spring...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$70.21
$42.14
Hager 1251 Full Mortise Spring Hinge with 1/4" Round Corners - Standard Weight Steel Construction

Hager 1251 Full Mortise Spring Hinge with 1/4" Round Corners - Standard Weight Steel Construction

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Model: 125131226D
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$70.21
$42.14
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Hager 1251 Full Mortise Spring Hinge with 1/4" Round Corners - Standard Weight Steel Construction

Professional Self-Closing Door Hardware Solution

The Hager 1251 Full Mortise Spring Hinge delivers reliable self-closing performance for commercial door applications. This standard weight steel hinge features 1/4" round corner radius design with 3-knuckle construction, meeting ANSI K81071F certification standards. Engineered for doors up to 7'0" in height, this full mortise design provides smooth operation with both leaves mortised into door and frame for secure installation.

Professional Features & Benefits

  • Full Mortise Design: Both leaves mortise into door and frame for maximum security and clean appearance in commercial applications.
  • 1/4" Round Corner Radius: Standard corner configuration provides versatile compatibility with most door and frame preparations.
  • 3-Knuckle Construction: Steel knuckle design ensures smooth operation and long-term durability under regular use.
  • Standard Weight Rating: Medium duty construction suitable for commercial doors up to 7'0" height with appropriate loading conditions.
  • Steel Construction: Steel material with steel components provides reliable performance and corrosion resistance.
  • ANSI Certified Performance: ANSI K81071F certification ensures compliance with industry standards for commercial door hardware.
  • Multiple Finish Options: Available in USP, US3, US4, US10, US10A, US10B, and US26D finishes to match architectural requirements.
  • Versatile Fastener Options: Accommodates both machine screws (12-24 x 1/2") and wood screws (12 x 1-1/4") for various installation requirements.

Technical Specifications

  • ANSI/BHMA: ANSIK81071F
  • Certifications: ANSI K81071F
  • Commercial/Residential: Commercial
  • Duty Level: Medium Duty
  • Fastener Size - Machine: 1 2-24 x 1/2"
  • Fastener Size - Wood: 1 2 x 1-1/4"
  • Features: Full Mortise, 1/4" Round Corner Radius, Spring Hinge, Standard Weight
  • Finishes: USP, US3, US4, US10, US10A, US10B, US26D
  • Knuckles: 3
  • Material: Steel with Steel Components
  • Notes: Hager does not recommend using spring hinges on doors over 7'0".
  • Subcategory: Full Mortise Hinges

Installation & Operation

  1. Review manufacturer specifications and verify door preparation requirements including door thickness, frame compatibility, and handing as applicable to this spring hinge.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces for full mortise installation.
  3. Prepare door and frame by drilling required holes and routing mortise pockets as specified in manufacturer instructions for both leaves.
  4. Install all mounting hardware using appropriate fasteners (12-24 x 1/2" machine screws or 12 x 1-1/4" wood screws) and secure the hinge to door and frame per manufacturer torque specifications.
  5. Adjust spring tension and operational components for proper alignment, self-closing action, and smooth operation throughout the full range of motion.
  6. Test hinge operation to verify proper self-closing function and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

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 Hager Quality?

Hager spring hinges deliver professional-grade reliability with steel construction and ANSI K81071F certification for demanding commercial applications. Manufactured in accordance with ANSI/BHMA A156.1 standards, these hinges provide dependable self-closing performance where consistent door operation is essential. Engineered for doors up to 7'0" height with multiple finish options to meet diverse architectural requirements.

Product Specs

Knuckles:
3
Subcategory:
Full Mortise Hinges
Product Subgroup:
Spring Hinges
Features:
Full Mortise, 1/4" Round Corner Radius, Spring Hinge, Standard Weight
ANSI/BHMA:
ANSI K81071F
Duty Level:
Medium Duty
Product Group:
Door Hinges and Pivots
Product Type:
Spring Hinges
Commercial/Residential:
Commercial
Product Model:
1251
Product Function:
Spring Hinges
Product Category:
Door Hinges and Pivots
Product Substrate:
Steel
Department:
Door Hardware

Hager 125131226D – Frequently Asked Questions

1) Is the Hager 1251 a full mortise hinge, and what prep does it need?
Full mortise, meaning both leaves are routed into pockets, one in the door edge and one in the frame rebate, so nothing shows but the barrel when the door is shut. You need mortise pockets on both sides, not just the door. Fastening takes either 12-24 x 1/2 inch machine screws into a metal frame or 12 x 1-1/4 inch wood screws into a wood door or wood frame, so match the screw to what you are anchoring into.
2) What is the closest match to a Hager 1251 from another brand?
For a like-for-like 1/4 inch radius corner spring hinge, the Orca Hardware 4014 Series in 4 x 4 is the nearest equivalent, medium duty like the 1251. The Deltana DSH35R4 is a 3-1/2 x 3-1/2 x 1/4 inch radius steel single action spring hinge if that is the size you need. In square corner, the McKinney 1502 is a full mortise standard weight spring hinge at 4-1/2 x 4-1/2.
3) My door and frame are prepped with square corner hinge pockets, not radius. What spring hinge fits that?
The 1251 is cut for a 1/4 inch round corner radius, so it will not seat cleanly in a square corner pocket. For square corner prep the options are the Orca Hardware SPR4040, a 4 inch by 4 inch square corner spring hinge rated medium duty; the McKinney 1502, a square corner full mortise standard weight spring hinge in 4-1/2 inch by 4-1/2 inch and also medium duty; and the BEST 2060R, a square corner standard weight spring hinge with a removable pin. Match the corner style to the existing mortise and you avoid rerouting the door.
4) What is the closest equivalent to the Hager 1251 spring hinge from another manufacturer?
The Orca Hardware SPR4014 is the nearest match. It is a 4 inch by 4 inch spring hinge with a 1/4 inch radius corner, rated medium duty, which lines up with the Hager 1251's 1/4 inch round corner radius and medium duty rating. If the opening already has 1/4 inch radius corner mortises cut in the door and frame, either hinge drops into that same prep at the 4 inch by 4 inch size. The 1251 covers a wider size range, so use the Orca where 4 inch by 4 inch is the only size on the job and the Hager where 3.5 inch, 4 inch, 4.5 inch by 4 inch, and 4.5 inch by 4.5 inch openings are mixed across the building.
5) The existing hinge pockets have a 5/8 inch radius corner. Will the Hager 1251 work?
No. The 1251 is built to a 1/4 inch round corner radius, and a 5/8 inch radius pocket leaves a gap at each corner. For 5/8 inch radius prep, the Orca Hardware SPR4058 is a 4 inch by 4 inch spring hinge cut to 5/8 inch radius corners, medium duty. If the frame uses a Z hole pattern rather than the standard staggered pattern, the Orca SPR4058Z is the same 4 inch by 4 inch 5/8 inch radius hinge with the Z hole pattern. Confirm the hole pattern in the frame before ordering either one.
6) I need a self-closing hinge on a fire rated opening. Is the Hager 1251 the right call or should I look at something UL listed?
The 1251 is a commercial full mortise spring hinge certified to ANSI K81071F. Where the submittal specifically calls for a UL listed spring hinge, the Design Hardware UL Spring Hinge is offered as a UL spring hinge in medium duty, and the Emtek 95013 is a UL listed 3-1/2 inch by 3-1/2 inch plated steel spring hinge with square corners, sold as a pair. On a fire door the number of self-closing hinges and the listing on the assembly are both part of the approval, so check the listing against the door and frame labels before committing.
7) The door is heavier than standard weight. What steps up from the Hager 1251?
The 1251 is a standard weight, medium duty steel hinge. When the leaf is heavier than that carries, the SOSS invisible spring closer hinges are rated heavy duty: the 216IC has a 20 minute fire rating, the 218IC is a 7 inch hinge requiring a 1-3/4 inch minimum door thickness, and the 220IC is a 7 inch hinge with a 20 minute fire rating requiring a 2 inch minimum door thickness. These mount concealed in a routed pocket in the door edge and frame rather than in a butt hinge mortise, so the door prep is different from the 1251's full mortise cut and the door thickness minimum has to be confirmed first.
8) How many Hager 1251 spring hinges do I need per door?
Spring hinges are sold and installed by the leaf, and each 1251 is a single hinge, not a pair. Standard commercial practice is three hinges on a door up to 7'0", which is also the height limit Hager states for these springs. How many of the three you make spring hinges depends on the closing force the opening needs, and the rest can be plain bearing hinges of the same size and corner radius.
9) What finishes is the Hager 1251 spring hinge available in?
Seven: 600 primed for painting, 605 bright brass, 606 satin brass, 612 satin bronze, 613 oil-rubbed satin bronze, 626 satin chrome, and US10A antique bronze. If you are matching existing commercial openings, 626 satin chrome is the usual pairing with 626 lever trim and 612 with satin bronze hardware. The 600 primed finish is the one to order when the hinges are being painted out to match the frame.
10) Spring hinges or a door closer for a self-closing commercial door?
Spring hinges like the 1251 close the door from the hinge itself, with no closer body or arm on the face of the door, which suits a clean look and openings where a closer would be in the way. They give you no control over closing speed or latching force, and they top out at 7'0" per Hager's own recommendation. If you need controlled closing, backcheck, or delayed action, a surface closer is the right call. If you want the self-close hidden entirely on a residential-scale door, an invisible closer hinge such as the SOSS 216IC does it, though those are heavy duty and require a specific door thickness.
11) Can the pin be removed from a Hager 1251 spring hinge to take the door off?
The 1251 is a 3-knuckle spring hinge and its spring is tensioned in the barrel, so it is not a loose-pin hinge you knock apart to lift a door. Plan to unscrew the leaf. If removable-pin convenience matters on your openings, the BEST 2060R and BEST RD2060R are spring hinges specified with a removable pin, the 2060R in square corner and the RD2060R in radius corner.
12) Do I need to specify handing when ordering a Hager 1251 spring hinge?
No handing to call out on the order. The 1251 is ordered by size and finish only, four sizes from 3-1/2 x 3-1/2 up to 4-1/2 x 4-1/2 and seven finishes. Spring tension is set on site during installation rather than being a factory option, so you adjust the closing force after the hinge is hung.
13) I need the door to swing both directions. Is the Hager 1251 a double action hinge?
No, the 1251 is a single action full mortise spring hinge, so the door swings one way. For a door that swings in both directions, the Deltana DASH95 is a double action spring hinge with solid brass cover plates, and the Deltana DASHS is a double action saloon hinge sold each in 4 inch, 5 inch, and 6 inch heights. These are a different opening entirely from the 1251's application, so decide the swing before the frame is prepped.
14) What is a simpler option than the Hager 1251 if I only need a 3-1/2 inch radius corner spring hinge?
The Deltana DSH35R4 is a single action spring hinge, 3-1/2 inch by 3-1/2 inch with a 1/4 inch radius, in steel, and the DSH35R4-A is the same 3-1/2 inch by 3-1/2 inch 1/4 inch radius steel single action hinge. Both share the 1/4 inch radius corner and 3-1/2 inch by 3-1/2 inch size that the Hager 1251 offers at its smallest, so they fit the same mortise on a light interior door. The 1251 is a commercial rated full mortise hinge certified to ANSI K81071F, which is what a spec-driven job will be looking for.
15) I am standardizing spring hinges across a building with mixed door sizes. Which line covers the most openings?
The Hager 1251 runs 3.5 inch by 3.5 inch, 4 inch by 4 inch, 4.5 inch by 4 inch, and 4.5 inch by 4.5 inch, all at a 1/4 inch round corner radius and medium duty, with finishes from primed for painting through satin chrome, bright brass, satin brass, satin bronze, oil-rubbed bronze, and antique bronze. The Orca Hardware spring hinges are 4 inch by 4 inch, split by corner style across the SPR4014 at 1/4 inch radius, the SPR4040 square, and the SPR4058 at 5/8 inch radius. The McKinney 1502 is 4-1/2 inch by 4-1/2 inch square corner. If the building has one corner style but several hinge sizes, the 1251 covers the range in one part number family; if corner styles vary at a single size, the Orca series splits that way instead.
16) Can I get the Hager 1251 in a 626 satin chrome 4-1/2 x 4-1/2?
Yes. Satin chrome 626 is offered in all four sizes, including 4-1/2 x 4-1/2. So are 600 primed, 605 bright brass, and 606 satin brass. Satin bronze 612, oil-rubbed 613, and US10A antique bronze also cover the full size range.
17) Is there a stainless steel or heavier version of the Hager 1251?
The 1251 is steel with steel components, standard weight, medium duty. On a high-traffic or exterior opening where you want stainless, the Pemko Markar FS902 Series is 304 stainless, but note it is a spring-loaded continuous hinge for toilet partitions rather than a butt hinge, so it is not a drop-in for a 1251 pocket.
18) Emtek 95013 is sold as a pair and the Hager 1251 is not. Does that change what I order?
Yes, count the units carefully. The Emtek 95013 is a UL listed 3-1/2 inch by 3-1/2 inch plated steel spring hinge with square corners sold as a pair, and the Deltana DASHS double action saloon hinge is sold each. Corner style also differs: the Emtek is square corner while the Hager 1251 carries a 1/4 inch round corner radius, so the two do not share a mortise even at the matching 3-1/2 inch by 3-1/2 inch size.
How fast can I get the Hager 125131226D 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 Hager 125131226D come with a warranty?
Absolutely. The Hager 125131226D 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 125131226D?
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