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90 Degree Door Hinges

We all know doors that won’t hold open at the right angle waste time, cause damage, and frustrate users. But what exactly makes a true 90 degree hinge, and why does it matter for professionals?

Waterson stainless steel 90 degree hinges provide heavy duty support, smooth operation, and precise hold-open at 90 degrees for commercial, residential, and glass door applications. Black, silver, gold, and bronze finishes are available.

Hold your door right every time at 90°.

  • Original price $440.59 - Original price $497.59
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    3pcs Soft Close Hydraulic Hinge for Interior Door | Arched Door | Hold Open | SS304 | K51M-450-D3

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    Get the best of all worlds with our Waterson K51M-450-D3 self-closing hinge. It's in stock right now and offers superior speed control, adjustable ...

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    Original price $440.59 - Original price $497.59
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    3pcs Bathroom Stall Door Hinges | Hold Open | Hydraulic | 4x4 | 7ft | SS304 | K51M-400-D3

    More on the way!

    TALK TO SALES FIRST Get the best of all worlds with our Waterson K51M-400-D3 self-closing hinge. It's in stock right now and offers superior speed ...

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    Original price $440.59 - Original price $497.59
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  • Original price $608.80 - Original price $684.80
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    4pcs Exterior Door Self Closing Hinges | Hold Open | 8ft | SS304 | K51M-500D-C4

    In stock

    Attention: Special finishes (US4) is non-refundable DESCRIPTION DETAILS SPECIFICATIONS VIDEO Applications Hotel Rooms  Fully Exterior   Arch ...

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    Original price $608.80 - Original price $684.80
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  • Original price $573.80 - Original price $649.80
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    4pcs Hydraulic Hinges Heavy Duty | Hold Open | SS304 | K51M-450-D4

    In stock

    Attention: This model is non-refundable DESCRIPTION DETAILS SPECIFICATIONS VIDEO Applications Offices  Interior Use Only Frameless Glass Door...

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    Original price $573.80 - Original price $649.80
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  • Original price $399.59 - Original price $456.59
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    3pcs Hold Open Door Hinges 4.5x4.5 | 7ft | SS304 | K51M-450-C3

    In stock

    Attention: Special finishes (US4) is non-refundable DESCRIPTION DETAILS SPECIFICATIONS VIDEO Applications Hotel Rooms  Interior & Exterio...

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    Original price $399.59 - Original price $456.59
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  • Original price $573.80 - Original price $649.80
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    4pcs Bathroom Door Closer Heavy Duty | Hydraulic | Hold Open | 8ft | 5x5 | SS304 | K51M-400-D4

    In stock

    Attention: This model is non-refundable DESCRIPTION DETAILS SPECIFICATIONS VIDEO Applications Offices  Interior Use Only Frameless Glass Door...

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    Original price $573.80 - Original price $649.80
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  • Original price $649.80 - Original price $725.80
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    4pcs Soft Close Door Hinges Heavy Duty with Hold Open | 8ft | SS304 | K51M-500D-D4

    In stock

    Attention: This model is non-refundable DESCRIPTION DETAILS SPECIFICATIONS VIDEO Applications Hotel Rooms  Interior & Exterior   Arch Top...

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    Original price $649.80 - Original price $725.80
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  • Original price $399.59 - Original price $456.59
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    3pcs Heavy Duty Self Closing Door Hinges with Hold Open | 7ft | Interior Door | K51M-400-C3

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    Attention: Special finishes (US4) is non-refundable DESCRIPTION DETAILS SPECIFICATIONS VIDEO Applications Hotel Rooms  Fully Exterior   Arch ...

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    Original price $399.59 - Original price $456.59
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  • Original price $532.80 - Original price $608.80
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    4pcs 4 Inch Self Closing Door Hinges | Hold Open | 8ft | SS304 | K51M-400-C4

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    Attention: Special finishes (US4) is non-refundable DESCRIPTION DETAILS SPECIFICATIONS VIDEO Applications Hotel Rooms  Fully Exterior   Arch ...

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    Original price $532.80 - Original price $608.80
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  • Original price $497.59 - Original price $554.59
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    3pcs Screen Door Spring Hinges | Hold Open | Hydraulic | 5x5 | SS304 | K51M-500D-D3

    In stock

    Get the best of all worlds with our Waterson K51M-450-D3 self-closing hinge. It's in stock right now and offers superior speed control, adjustable ...

    View full details
    Original price $497.59 - Original price $554.59
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  • Original price $456.59 - Original price $513.59
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    3pcs Self Closing Spring Hinge Heavy Duty | Mechanical | Hold Open | 5x5 | 7ft | SS304 | K51M-500D-C3

    In stock

    Attention: Special finishes (US4) is non-refundable DESCRIPTION DETAILS SPECIFICATIONS VIDEO Applications Hotel Rooms  Fully Exterior   Arch ...

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    Original price $456.59 - Original price $513.59
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  • Original price $532.80 - Original price $608.80
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    4pcs Commercial Spring Hinges Heavy Duty | Mechanical | Hold Open | 4.5 x 4.5 | 8ft | SS304 | K51M-450-C4

    In stock

    Attention: Special finishes (US4) is non-refundable DESCRIPTION DETAILS SPECIFICATIONS VIDEO Applications Hotel Rooms  Fully Exterior   Arch ...

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    Original price $532.80 - Original price $608.80
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  • Original price $163.20 - Original price $182.20
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    1pc Self Closing Hinge to Hold Door Open | Heavy Duty | Single Hinge | SS304 | K51M-450-SB

    In stock

    Attention: This is a one hinge set. For the best recommendation, please: TALK TO SALES FIRST - NON REFUNDABLE

    Original price $163.20 - Original price $182.20
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  • Original price $554.59 - Original price $554.59
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    Current price $554.59

    3pc Soft Close Interior Door Hinges | Hold Open | 7ft | SS304 | K51M-600-D3

    More on the way!

    TALK TO SALES FIRST Attention: Special finishes (US4) is non-refundable DESCRIPTION DETAILS SPECIFICATIONS VIDEO Applications Hotel Rooms In...

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    Original price $554.59 - Original price $554.59
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    Current price $554.59
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  • Original price $513.59 - Original price $513.59
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    3pcs Best Hinges for Heavy Doors | Hold Open | 7ft | SS304 | K51M-600-C3

    More on the way!

    TALK TO SALES FIRST Attention: Special finishes (US4) is non-refundable DESCRIPTION DETAILS SPECIFICATIONS VIDEO Applications Hotel Rooms Fu...

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    Original price $513.59 - Original price $513.59
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  • Original price $649.80 - Original price $877.80
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    4pcs Antique Gold Door Hinges with Hydraulic Hydric | Stainless Steel | 8ft | K51M-B4-US4

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    Attention: Custom color is available by request  TALK TO SALES FIRST IMPORTANT: CUSTOM FINISH - NO RETURN - 1 MONTH LEAD TIME ESTIMATED DESCRIPTIO...

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    Original price $649.80 - Original price $877.80
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    Current price $649.80

What is a 90 degree hinge?

A 90 degree hinge is engineered to stop or hold a door at a precise right angle. Unlike standard butt hinges, it integrates a built-in stop or hold-open function to secure the door at 90°. Waterson designs concealed 90 degree hinges and 90 degree hinge heavy duty models tested for 150–440 lbs, ideal for professional-grade projects.

How to install 90 degree hinges?

Waterson 90 degree door hinges install like standard mortise hinges, but with integrated stop or hold-open mechanisms.

For the tooling, you need to prepare:

  • 5 mm hex wrench – for the Hold-Open Control Nut
  • 3 mm hex wrench – for the lock-in screws

Here is the step-by-step:

  1. Locate the SB hinge bottom – Hold-open adjustment is only done at the bottom of the SB hinge.
  2. Loosen the lock-in screws – Use the 3 mm hex to slightly release the lock so you can make adjustments.
  3. Adjust the hold-open – Insert the 5 mm hex into the control nut:
  • Turn toward “–” to enable hold-open at 90°.
  • Turn toward “+” to disable hold-open.

4. Test the door – Swing it to 90° and check if it holds (enabled) or swings freely (disabled). Repeat in small increments if needed.
5. Re-lock the setting – Tighten the lock-in screws again with the 3 mm hex to secure your adjustment.

Notes:

  • Adjustment works only on SB hinges and only at the bottom.
  • Use small turns — a quarter turn at a time is best.
  • After adjustment, check your closing speed so the door still latches properly.

Watch how to install and adjust a hold open 90 degree hinges here.

How to make a hinge stop at 90 degrees?

Two methods are common:

  1. Built-in hold-open hinges that secure the door at 90°.
  2. Mechanical door stops mounted on the floor or wall.

Waterson’s soft close 90 degree hinge combines both functions: controlled closing plus precise 90 degree door stop. No extra hardware needed.

Where can I order 90 degree door hinges with high load capacity?

Waterson offers 90 degree hinges heavy duty that handle 150–440 lbs and beyond with customized hinge sets. Applications include commercial steel doors, heavy glass panels, and oversized residential entries. For projects needing special finishes or higher loads, Waterson engineers can customize solutions.

Where can I get 90 degree hinges for glass doors?

Right at Waterson Hinges! We do provide 90 degree hinges for glass doors, with self-closing and hold-open options. Perfect for frameless glass in commercial lobbies, shower doors, or interior partitions.

Explore Waterson Glass Door Hinges here. 

Waterson 90 Degree Door Hinges Applications

  • Commercial 90 degree hinges
  • Office 90 degree hinges
  • School door 90 degree hinges
  • Shopping center 90 degree hinges
  • Heavy entry door 90 degree hinges
  • Patio door 90 degree hinges
  • Gated community 90 degree hinges
  • Metal door 90 degree hinges
  • Security door 90 degree hinges
  • Factory gate 90 degree hinges
  • Black 90 degree hinge
  • Silver 90 degree hinge
  • Gold 90 degree hinge
  • Bronze 90 degree hinge
  • Frameless partition 90 degree hinges
  • Shower door 90 degree hinges
  • Storefront 90 degree hinges
  • Interior glass 90 degree hinges
  • High load capacity 90 degree hinges