#420 Fire Rated Invisible Hinge Bright Stainless Steel
Whether your doorway is made of wood or metal, rated 20 minutes or 3 hours, there is a Soss fire rated hinge that will comply and still give you the invisible look you expect from Soss.
Ends Jun 30
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view bid cartAll the product info you could ask for...
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Size Info
- Minimum Door Thickness : 2"
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Manufacturer Info
- Manufacturer Finish : US32
- Manufacturer Part # : 420SSUS32
- Manufacturer : Soss
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Other Important Info
- Key Features : Invisible from either side when closed
Moving pivot point remains inside hinge during travel
Deep mortise of hinge assures a strong installation - Material : Steel
- Product Finish : Bright Stainless Steel
- Sold : 1 Hinge Per Box
- Product Type : Fire Rated Invisible Hinge
- Model # : 420FR
Manufacturer Resources
Installation Hardware
Other - Soss 420 Series Invisible Hinges
Our customers say Soss products...
based on 192 ratings
- 5 of 5 SOSS 101 Invisible Hinges April 8th, 2026
by Richard from Mukilteo, WAThere is a marked difference between the SOSS 101 invisible hinges and those made in other countries. The quality, fit, finish and the smoothness of operation of the SOSS hinges is just superior. Yes, they cost more but is your project worth the cost in long term.
This review is about similar Soss Hinges. (UIP-101CUS19)
- 5 of 5 Pretty ingenious March 3rd, 2026
by Travis from Golden, COThese things are super cool and seem like they solve some problems in a unique way. But beware: they're pretty fragile! Don't expect to be able to test fit them and remove them over and over, or you'll break them (speaking from experience)
This review is about similar Soss Hinges. (UIP-BH085)
- 5 of 5 Hinge August 21st, 2025
by Craig from Windsor, WIGreat product for my application
This review is about similar Soss Hinges. (UIP-BH144)
- 0 of 1 people found the following review helpful
5 of 5 invisible hinge June 12th, 2025
by Pamela from Larchmont, NY(no comment given)
This review is about similar Soss Hinges. (UIP-204CUS26D)
- 23 of 26 people found the following review helpful
4 of 5 Pretty good December 30th, 2014
by Joseph from Spokane, WABought the 12 mm barrel hinges for some fly boxes. They were pretty decent, but not all of them were created equal. Some of them out of the box were quite a bit stiffer and grittier feeling. I used white lightning dry lubricant to loosen them up, seemed to work alright. I recommend investing in a good marking gauge, a quality 12 mm brad point bit and an accurate drill press. Your layout has to be spot-on with these, there's no room for error or adjustment. Over all I was pleased with the purchase, ordering from CabinetParts.com however is another issue. $14 for shipping a tiny package in snail mail is ludicrous, not to mention the tracking number I received from them was for somebody else's order. Hope this helps
This review is about similar Soss Hinges. (UIP-BH124)
Reviews about us...
- 5 of 5 | June 19th, 2026
Ordered the wrong parts and they were great fixing my issue. Will be my go to from now till on
- 5 of 5 | June 19th, 2026
Good service. Had parts i needed in couple of days.
- 5 of 5 | June 19th, 2026
Tried finding the hinges elsewhere. Found them right away. Perfect match.
- 4 of 5 | June 18th, 2026
I was able to find the exact hinge needed to replace broken hidden Soss hinges in a Martha Washington cabinet. The price was reasonable. It did take a while to ship out (ordered May 15, shipping notice June 2) but then arrived quickly once shipped.
- 5 of 5 | June 18th, 2026
I have looked and looked for replacement parts for my cabinets and was about to give up hope, but thankfully they had the exact parts I needed. They arrived quickly, reasonably priced and I am thrilled.
Professional Self-Centering Vix Bit, Essential Drill Bit for Hinge Installation
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