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- No Additional Cost: You pay nothing for repairs – parts, labor, and shipping included.
- Coverage: Plan starts on the date of purchase. Malfunctions covered after the manufacturer's warranty. Power surges covered from day one. Real experts are available 24/7 to help with set-up, connectivity issues, troubleshooting and much more.
- Easy Claims Process: File a claim anytime online or by phone. Most claims approved within minutes. We will send you an e-gift card for the purchase price of your covered product. In some instances, we will replace or repair it.
- Product Eligibility: Plan must be purchased with a product or within 30 days of the product purchase. Pre-existing conditions are not covered.
- Terms & Details: More information about this protection plan is available within the “Product guides and documents” section. Simply click “User Guide” for more info. Terms & Conditions will be available in Your Orders on Amazon. Asurion will also email your plan confirmation with Terms & Conditions to the address associated with your Amazon account within 24 hours of purchase.
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Add to your order
- Coverage for accidental damage including drops, spills, and broken parts, as well as breakdowns (plans vary)
- 24/7 support when you need it.
- Quick, easy, and frustration-free claims.
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PATCHBOX/dev/Mount - Toolless Installation Cage Nut Alternative Device Mount Screws for Patch Panels, Computer Cabinets, Servers, and Network Racks - for 19” Rails, Supports 15kg - 50-Pack
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We offer easy, convenient returns with at least one free return option: no shipping charges. All returns must comply with our returns policy.
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Learn more
Return this item for free
We offer easy, convenient returns with at least one free return option: no shipping charges. All returns must comply with our returns policy.
Learn more about free returns.- Go to your orders and start the return
- Select your preferred free shipping option
- Drop off and leave!
Purchase options and add-ons
Brand | PATCHBOX |
Product Dimensions | 6.1"W |
Size | 235mm x 155mm x 70mm |
Material | Aluminum |
Compatible Devices | Server |
About this item
- TOOLLESS INSTALLATION MADE EASY: Install your devices in a snap with PATCHBOX/dev/Mounts—no tools required! Simply click them into place and hand-tighten the hex nuts. Mount effortlessly and avoid losing parts on the floor.
- SAFER AND FASTER SETUP: Forget about sharp cage nuts that can hurt your fingers. Our /dev/mounts are designed for easy handling and fast installation, keeping your fingers safe and making setup a breeze.
- SIMPLE AND EFFECTIVE: Each /dev/mount is a single piece. Just use the included hex nuts, which are easily tightened by hand. It’s a game-changer for installing equipment—quick, easy, and hassle-free.
- SAVE TIME AND REDUCE STRESS: Mounting network equipment doesn’t have to be a chore. Our /dev/mounts speed up the process, making setup up to 3x faster than traditional cage nuts. Save time, money, and frustration.
- STRONG AND DURABLE: Made from high-quality spring steel and aluminum, our /dev/mounts support up to 200kg (440lbs). They provide reliable stability and strength for secure installations. Each pack includes 50 mounts and 100 dual-sided reversible hex nuts.
- VERSATILE AND COMPATIBLE: Perfect for 1RU hardware and all 19” racks with square punched holes. The 50-pack covers 25RU of equipment, making it an ideal choice for both small and large setups.
Frequently bought together

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Product information
Product Dimensions | 9.25 x 6.1 x 2.76 inches |
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Item Weight | 1.87 pounds |
Manufacturer | PATCHBOX |
ASIN | B085RW49C9 |
Item model number | DVMNT50 |
Customer Reviews |
4.4 out of 5 stars |
Best Sellers Rank |
|
Date First Available | July 29, 2020 |
Warranty & Support
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PATCHBOX/dev/Mount - Toolless Installation Cage Nut Alternative Device Mount Screws for Patch Panels, Computer Cabinets, Servers, and Network Racks - for 19” Rails, Supports 15kg - 50-Pack
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Product Description


Say goodbye to traditional cage nuts and hello to this time saving, mounting solution!
Mounting 19″ equipment in a network rack has never been easier! The /dev/mount is the fastest, most secure solution, completely replacing conventional cage nuts used in server and network racks. The/dev/mount holds equipment securely in place before the hex nuts are even fastened, making hardware mounting a faster, more efficient, and more secure task.
Speed Up Installation!
The /dev/mounts are made with long reversible hex nuts that can be used from both sides, no matter how you hold them. They are just one piece, require no tools, and are easily installed.
Simplify Device Mounting!
The /dev/mount cage nut alternative is made out of high-quality spring steel and aluminum. They can hold up to 15kg (33lbs). Providing the impressive stability and security needed to streamline the installation process.
Save Time and Nerves!
Our /dev/mounts are designed with you in mind. They are easier to handle and are less likely to slip out of your hand or result in injury than conventional cage nuts.




From the brand

PATCHBOX | We Simplify IT
Cable Management. Hardware Installation. Device Mounting.
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Setup.exe
The best invention since the wheel.
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PATCHBOX Plus
The ultimate solution for a neat rack!
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Dev/Mount
Better then any cage nut.
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers find the toolless installation cage to be sturdy, easy to install, and look great, with one customer noting it's better than plastic rack studs. The product receives positive feedback for its value, and one customer describes it as the "greatest invention in the world of racks." The compatibility and thickness aspects receive mixed reviews.
AI Generated from the text of customer reviews
Customers find the toolless installation cage easy to use and install.
"...They save your finger, make racking switches much easier, and look great...." Read more
"...For everything else, these are the go to and super easy to use once you get into the habit." Read more
"...things initially look like they will solve a problem and make rack installations easy. But, they do not! First, they are kind of a pain to snap in...." Read more
"...They are super easy to install and remove in a matter of seconds. Buy them now!" Read more
Customers find the product to be worth the money.
"Great product except for the color of the nuts. I need to find out what thread size these are and get different ones...." Read more
"Really awesome! But one small issue..." Read more
"Worth it...." Read more
"Awesome product..." Read more
Customers like how the product looks.
"...They save your finger, make racking switches much easier, and look great...." Read more
"I love how these look in my rack, and make moving things so much easier. However, that being said...." Read more
"...They are sturdy, look the best, and we haven't had any snap or break (unlike Rackstuds)...." Read more
Customers love these rack nut replacements, with one customer noting they are better than plastic rack studs.
"I love these rack nut replacements!!! They save your finger, make racking switches much easier, and look great...." Read more
"What can I say? These are the single greatest invention in the world of racks...." Read more
"so much better than the plastic rack studs..." Read more
Customers find the toolless installation cage to be sturdy.
"...These are aluminum and just feel so much more solid. So far no problems." Read more
"...They are sturdy, look the best, and we haven't had any snap or break (unlike Rackstuds)...." Read more
"Simple. Strong for heavy (deep) devices...." Read more
Customers have mixed experiences with the compatibility of these mounting screws, with some reporting they work great with their equipment while others mention issues with server rack systems.
"The studs are quite thick. Works great for some equipment and other equipment it isn’t compatible with including some common shelves on amazon...." Read more
"...The only problem with them I see is they only work with 1ru devices, wish they would develop something for 2ru items like rack fan panels." Read more
"These work great, but I didn't want red nuts, I would like the silver anodized look that the listing showed." Read more
"Unfortunately due to the design this product did not work with my server rack system...." Read more
Customers have mixed opinions about the thickness of the mounting screws, with one customer noting they are made of metal rather than plastic like rack studs, while another finds them not thin enough for practical use.
"...I went with this because it's all metal and some of my heavier devices were questionable with plastic studs that I had." Read more
"The studs are quite thick...." Read more
"...These are aluminum and just feel so much more solid. So far no problems." Read more
"...Then, there is the issue of the screw being just a bit thicker than a regular rack screw...." Read more
Reviews with images

Worth it.
Top reviews from the United States
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- Reviewed in the United States on December 18, 2024These are awesome and made installing 8 switches in each of 4 IDF rooms.
- Reviewed in the United States on March 24, 2025Very happy with these. Overkill for my home network rack, but this is the third approach I've tried and definitely prefer this. I went with this because it's all metal and some of my heavier devices were questionable with plastic studs that I had.
- Reviewed in the United States on July 7, 2025Great product except for the color of the nuts. I need to find out what thread size these are and get different ones. Not sure why they switched from silver to red, but ANY RED is bad in my IT racks. Red = trouble. Any other color is fine. Otherwise, great product.
- Reviewed in the United States on July 13, 2025I love these rack nut replacements!!! They save your finger, make racking switches much easier, and look great. The only problem with them I see is they only work with 1ru devices, wish they would develop something for 2ru items like rack fan panels.
- Reviewed in the United States on December 1, 2024I had a problem of snapping the plastic rack studs, so I tried these. These are aluminum and just feel so much more solid. So far no problems.
- Reviewed in the United States on October 25, 2024The patchbox /dev/Mount rack studs make me wish I never had to use cage nuts ever again (certain devices don't have every individual rack unit mounting holes). For everything else, these are the go to and super easy to use once you get into the habit.
- Reviewed in the United States on December 6, 2024I wish these had black or just uncoated silver coupling nuts. The only red I want to see when looking at my racks are when there are error lights.
Also, the metal edges of the clips are surprisingly sharp. Careful.
- Reviewed in the United States on September 11, 2024The studs are quite thick. Works great for some equipment and other equipment it isn’t compatible with including some common shelves on amazon.
Removing is a bit of a pain, slightly harder than removing cage nuts. I wish they’d include a small tool for the price.
Not offering a single-peg version means these will only work for 1U devices and everything else will need a different mounting solution.
Overall: very overpriced and not well thought through. They need to up their game if they’re trying to capture an enthusiastic high end market.
Top reviews from other countries
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M. RichterReviewed in Germany on August 11, 2024
5.0 out of 5 stars Bin begeistert - Vergleich zu Rack Studs
Ich habe neulich meinen Serverschrank umgebaut und wollte dabei weg von den Käfigmuttern. Der Gedanke, dass man Schrauben hat, auf die man das einzubauende Gerät schieben kann und welches dann werkzeuglos mit Muttern gesichert wird, gefiel mir. Dieses Versprechen bieten die dev/mounts sowie die Rack Studs. Also habe ich beide bestellt und ausprobiert.
Mit den Rack Studs bin ich so gar nicht klar gekommen. Ich habe mir dann noch zahlreiche Videos angeschaut, aber ich bekomme diese Plastikdinger einfach nicht in die Löcher bzw. anschließend nicht wieder raus. Selbst wenn ich es so mache, wie beschrieben, mit dem leichten Anwinkeln und von hinten drücken - das macht mir die Finger mehr kaputt als die alten Käfigmuttern, die ich ersetzen wollte. Vermutlich hat mein Serverschrank unpassende Löcher, obwohl man meint, das müsste doch alles genormt sein. Naja, egal.
Jetzt zu den dev/mounts: diese lassen sich sehr einfach installieren und auch wieder entfernen! Das geht mit einer Hand absolut problemlos. Ich war sofort begeistert. Zum Entfernen der Klemmen, einfach das hintere Teil zur Seite drücken und schon löst sich die vordere Klammer. Einfacher geht es wirklich nicht.
Dennoch 2 kleine Kritikpunkte: das Blech ist etwas scharfkantig, also Vorsicht bei der Montage. Allerdings habe ich mich selbst nach mehreren verbauten HE nicht verletzt, ist damit also vielleicht unbegründet. Wollte es dennoch erwähnen.
Weiterhin sind die dev/mounts ausschließlich für 1 HE geeignet. Für die meisten Geräte passt das zwar, allerdings habe ich auch eine Blende von 2 HE. Diese konnte ich mit den dev/mounts leider nicht befestigen - schade. Ich hoffe der Hersteller lässt sich hier noch etwas einfallen. Etwa indem es spezielle 2 HE Ausführungen gibt oder an den Klemmen wird zumindest eine der beiden Schrauben so angebracht, dass diese entfernt werden kann. Derzeit sind beide Schrauben fest vernietet.
Trotzdem ziehe ich dafür keinen Punkt ab, da das Produkt wie beworben funktioniert und mir die Arbeit am Serverschrank sehr erleichtert hat. Das Beste: man benötigt keinen Schraubenzieher mehr. Und es geht auch schneller, da mit jeder eingesetzten Klemme gleich 2 Schrauben angebracht werden. Je Gerät also eine Klemme links und eine rechts, das dauert nur wenige Sekunden. Die Bestückung des Schranks, insbesondere mit großen und schweren Geräten, war noch nie so einfach. Von mir gibt es damit eine klare Kaufempfehlung.
- Amazon CustomerReviewed in Germany on September 5, 2024
5.0 out of 5 stars Excellent fittings, look easy to fit
The fittings are really well made, look like they will do the job required of them. Unfortunately they do not fit my rack.
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Gert EckhoffReviewed in Germany on January 2, 2023
5.0 out of 5 stars EDV-Schrank Montagen mal einfach
Absolut geniales Produkt. Wer schon einmal Käfigmuttern in EDV-Schränken montiert hat, weiß dieses Produkt sehr zu schätzen. Der Einbau ist in Sekundenschnelle erledigt. Kein gefummel, verlorene Muttern oder angekratzte Finger. Einfach Einklicken und fertig. Der Preis ist zweifelsohne hoch. Entspanntes Arbeiten hat seinen Preis und schont die Nerven. Für mich eine tolle Lösung und NEIN, ich bin nicht von der Firma und habe auch kein Geld für diese Rezension erhalten. EDV-Schrank Montagen mache ich ein bis zwei Mal im Jahr im Rahmen eines Projekts.
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evil-manReviewed in Germany on June 29, 2024
4.0 out of 5 stars Gute Hilfe für Einzelkämpfer
Eine gute Alternative für die bekannten Käfigmuttern, besonders, wenn man keine helfende Hand eines Kollegen an der Seite hat. Es ist in jedem Fall einfacher, als wenn man, wie gewohnt, das Gerät festhalten muss und die Schraube einfädeln muss. Einfach aufschieben und die Hülse mit der Hand aufschrauben.
Was noch verbessert werden kann ist das Einhängen in das 19"-Raster. Bis das Ganze gerade sitzt braucht man doch öfter mehrere Anläufe.
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Zander ValleReviewed in Germany on March 17, 2024
5.0 out of 5 stars Einfachste Installation von 1U Geräten
Habe die schon öfter gesehen und jetzt zum ersten Mal selbst verwendet. Super einfach zu verwenden und hält von Blenden bis Router/Schwitches super fest!