Soss  |  SKU: 900028

Soss Heavy Duty Concealed Hinges

$5375 Each
Finish Name: Satin Brass


  • This heavy duty Soss hinge is completely concealed when door is closed.
  • Made from high strength plated steel and heavy duty zinc alloy castings.
  • This Soss concealed hinge features reinforced nylon at wear points for long life.
  • For help selecting the right size Soss hinge, please reference the the document under Downloads titled "How to Choose the Right Soss Hinge". Alternatively, you can use the following link to calculate which hinge will work best for you. If it recommends a hinge not listed on this page, simply type that hinge number into the search box above (e.g. "#208").
  • Click here to view the Soss Hinge Selector. (Click on "Hinge Calculator")



  • Plate Size: 4-5/8" H x 1-1/8" W
  • Mortise Depth: 1-19/32"
  • Minimum Door Thickness: 1-3/4"


  • Plate Size: 5-1/2" H x 1-3/8" W
  • Mortise Depth: 1-15/16"
  • Minimum Door Thickness: 2"

Read More

A SOSS hinge is a type of concealed hinge that is designed to be completely hidden from view when the cabinet or door is closed. There are several reasons why someone might choose to use a SOSS hinge:

  1. Aesthetics: SOSS hinges provide a sleek and clean appearance to cabinets and doors, as they are completely hidden from view.

  2. Security: Because the hinge is concealed, it makes it more difficult for someone to tamper with or remove the door.

  3. Space-saving: SOSS hinges allow doors to be opened and closed without needing extra clearance space for the hinge, making them a good option for tight spaces.

  4. Durability: SOSS hinges are designed to be durable and long-lasting, as they are typically made from high-quality materials like brass or stainless steel.

Overall, if you are looking for a hinge that provides a sleek and clean appearance while also offering durability and security, a SOSS hinge may be a good choice.



UIP warrants its products only against defects in materials and workmanship for a period of one year from the date of UIP’s shipment when its products are used for the service recommended. UIP’s liability and its customer’s exclusive remedy under this warranty or any warranty, expressed or implied, is expressly limited to refund of the purchase price, repair or replacement at UIP’s option, during said period, upon proof of the defect satisfactory to UIP, and upon the purchaser’s returning the product to UIP after securing return goods authorization for the defective material to the place designated by UIP. There are no warranties other than those contained in this agreement, and neither any representation or affirmation made, nor any drawing or sample shown, will be deemed to create any warranty or standard of performance. In the event that any UIP product is modified at any place other than the point of original manufacture, this warranty is null and void. THE WARRANTY SET FORTH IN THIS PARAGRAPH IS MADE EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES EXPRESSED, IMPLIED OR STATUTORY, INCLUDING BUT NOT LIMITED TO, WARRANTIES WITH RESPECT TO QUALITY, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

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Page Code: C10247

  • Manufacturer
  • Material
  • Opening Angle
    180 Degrees
  • Mounting Hardware Included
  • Mounting Hardware Type
    Matching wood screws

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Frequently Asked Questions

How long does it take to get my hardware once it's been ordered?

The delivery time depends on how far you live from our San Diego warehouse. Generally, your order will reach you in 1 to 5 business days. Shipments do not move on weekends and holidays.

Do you ship merchandise outside the United States?

At this time, we only ship to addresses in the continental United States, Alaska, and Hawaii. For APO/FPO/DPO and Canadian orders, please email with a list of the SKU numbers and quantities you would like to purchase, along with your complete ship to address. Once we receive this information we will email you a shipping quote. Please note: Canadian shipments have a $50.00 minimum order.

I have a hinge that I am trying to replace but I need help identifying it. Can you help?

Yes! Please click here to visit our Hinge Finder page.

Some of your hinges are sold by the each and some sell by the pair. What is the difference?

When the unit of measure says “pair” that means two hinges. Usually you need one pair of hinges per door. When the unit of measure says “each” that means one hinge. You would usually order 2 “each” hinges per door.

I want to replace my hinges. How do I make sure the screw holes on the new hinge match the screw holes on the old hinge so I do not have to redrill the holes?

Unfortunately, hinge manufacturers have never standardized the location of their screw hole patterns. Every manufacturer puts their screw holes in a slightly different place. This means that when you replace hinges you will almost certainly have to do some filling and redrilling. The exception to this is Architectural door hinges which are built to a standardized template for each size hinge.

What is your return policy?

You can see our complete return policy here: HardwareSource Returns