Rackstuds R100 Series II - Server Rack Screws 100 Pack | Cage Nut Replacement | Red 2.22mm/0.086" | A Faster, Easier Solution for Rack mounting Gear in 19" Racks with Square Punched Vertical Rails

The Rackstuds R20 II have completely revolutionized the way I manage my server racks. These innovative rack screws are a huge improvement over traditional metal cage nuts, making installations and maintenance so much easier and faster. The design is ingenious—they snap into place securely and hold equipment firmly without the hassle of using tools or dealing with sharp metal edges. One of the best features of the Rackstuds is how user-friendly they are. I was able to install equipment by myself, which is often difficult with standard screws. They stay in place perfectly and allow for easy adjustments if needed. The vibrant red and yellow colors are also a plus, making it easy to spot them when working inside dimly lit racks. What really sets them apart is the durability. Despite being made of high-strength polymer, they can handle the heavy loads of my rack-mounted equipment just as well, if not better, than metal screws. I’ve never had any issues with them loosening or failing, which gives me great confidence in their performance. Overall, the Rackstuds R20 II have simplified my rack setups, made installations faster, and are much safer to use. I highly recommend these to anyone who manages server racks or IT equipment—they’re well worth the investment!

These are seriously cool. I’ve been in IT for over a decade and have used cage nuts my whole career. I’d seen these before and always thought they looked neat, but I didn’t want to spend the extra money. After trying them, I can say they’re better than cage nuts in every way. They just click in, feel surprisingly sturdy, and make assembly a lot quicker. The fit is perfect, they snap in without issues, and once the equipment is mounted it sits tight with almost no wiggle. I haven’t mounted a heavy Cisco switch yet, but I plan to at some point. Yes, they’re a little pricey at about a dollar each, but I get it. They do exactly what they should and make things easier. The only downside I’ve noticed is the clips make gear sit a bit higher. For example, my Ubiquiti UDM-Pro has thicker ears and looks slightly raised compared to the rest of the rack. Overall, I’d definitely recommend these and I’m looking forward to trying more of their products.

I absolutely love these screws, the plastic is of great quality and they are great value for the money. I personally use these to lock in my disk drives and computers into my rack mount and I couldn't be happier. They are so easy to install and use. They a couple different ones for different server racks and I had a question so I messaged the manufacturer and they were quick to get with me and to verify which one would work and they were correct. They worked good with my Riveco rack I bought also from Amazon.

I have seen these mentioned on youtube for probably a couple of years now but having racked hundreds of systems in however many years (probably more like a thousand) I honestly thought these were kind of a gimmick. Decided just for the heck of it to give them a shot since I'm finally assembling myself a homelab rack. All I can say is I completely understand why people love these now. The only real flaw is you wont be able to use them for everything since a lot of rails mid mount on servers and the rackstuds will interfere with rack ears on said server. If they come out with a version that gets around this I'd give them a shot but especially if you are mounting decently heavy 1U or 2U equipment solo these just make the job 100% easier. In my case I had a decently heavy 2U UPS mounted in probably about 2 minutes. While not the heaviest I've mounted solo the fact that there is no 'lean' on the UPS and it feels solid with so little effort is pretty dang nice. I also mounted a 1u switch painlessly but as it happens that switch is way too loud so it will be getting replaced. The switch does 'lean' but most of the weight is at the back of the switch and it's not like I'm worried about it somehow falling out of the rack so overall it's fine, just something to be aware of. While I doubt I'll ever use these in the DC's I work in (more's the pity) these are great for my use at home and while fairly expensive compared to the conventional rack nuts more than enough of them come in 1 pack for my needs at home. I'd definitely recommend, especially if you don't need a ton of them. Edit; I'm using the Red 2.2mm in a Vivo 22U rack I got from Amazon.

I absolutely love Rackstuds for their game-changing impact on my server and equipment racks. These ingenious devices have completely transformed my approach to rack mounting, offering a sleek, tool-free alternative to traditional rack screws and cage nuts. The ease of installation is unmatched; simply push them into the rack rails and they stay securely in place, allowing for quick and effortless mounting of equipment. Not only do Rackstuds streamline the setup process, but they also enhance the overall look of the rack by eliminating the clutter and mess of conventional mounting hardware. Their durability and reliable performance have made them an essential part of my rack management toolkit, and I can't imagine going back to the old way of mounting equipment.

I have a 32U rack that had rack nuts and screws that were extremely difficult to work with. These Rackstuds have been very helpful. In my home lab, I rearrange things sometimes and now I don't have to dread the task. One exception - and this is the reason for only four stars - Rackstuds provide no "wiggle room." If the component you are installing has something non-standard or slightly off with its bracket spacing, Rackstuds will not work for that component. You'll have to go back to the standard metal screws and nuts because they wiggle a little bit to allow for fine placement. Also, when I tried to use spacings that were on other than 1U boundaries, the Rackstuds never worked. Maybe my rack was manufactured poorly. Still, with metal screws and nuts that has never been an issue because of the amount of adjustment possible with them. So, its a good product, but not great because it is inflexible. My rack now has a mixture of metal screws and Rackstuds and I would imagine that's how most installations wind up. This is not a magic bullet.

I wish I'd known about this product 2 years ago when my team was first setting up our equipment rack. We have a 9u rack with several pieces of sensitive audio and networking equipment. We have been battling a ground loop issue, and tried installing Humfrees brand isolators, which are frankly a pain in the butt to install (and leave many screws impossible to screw in. The Rackstuds are fully plastic, fully isolating the equipment from the metal frame of the rack. In addition, they are so easy to install that I would use them by default, even of electrical isolation isn't an issue. They truly install as easily as advertised, and since they install first, with a post sticking out, hanging the equipment and holding it steady while you screw on the retention knobs is so much easier than holding the equipment in place while you fumble with threading the traditional metal screws into the cage nuts one at a time. I'm never using metal cage nuts/screws ever again. I spent a total of 45 minutes installing 9u's worth of these studs, and that included the time it took to remove the metal screws and cage nuts (and throw away the Humfrees isolation tabs).

Other reviewers are missing the point. Do you even rackmount bro? The manufacturer is likewise missing the point in their advertisement. They do an absolutely horrible job of extolling the true virtues of their overpriced product. (price will be the last point in my review.) Cage nuts are trivial to install and remove. You can use an expensive tool $35 or a cheap tool $1. Or a screwdriver. For about $10 you can get a toyota camry level of tool that just gets the job done and isn't otherwise much to look at. For $35 and up you can get a ferrari level of tool that is overpriced, doesn't do it's core job any better than a camry, but gives the owner some extra satisfaction. Regardless of tool choice, cage nut installation and removal is a solved problem. The actual problems these things solve is: 1. cage nut quality is all over the board. People buy the dirt cheap unbranded chinacom cage nuts and then complain that they suck. duh. buy APC or other brand name for consistent performance. Even then, the cost is still in the noise so why worry about pennies. just like your basic screw and nut which seems like you can't mess it up, well it turns out that these things are in fact precision parts, requiring careful quality control. whereas, rackstuds are of consistent high quality from a single manufacturer. you can't buy a poorly performing one -- yet. 2. if you are especially fat-fingered, or not dexterous, you may drop the cage nuts as they go in or out. there are times where this creates a problem. the design of the rackstud doesn't preclude dropping them (esp. the yellow "washer" part), but since they are completely handled from the front with no tool, the risk is very, very much reduced. 3. cage nuts have inherent slop. most importantly, vertically. sometimes you may find that something doesn't fit in the opening left for it, due to tolerances eaten up by the cage nut slop and varying hole clearances of the device mounting tabs. you'll sometimes have to loosen up the surrounding equipment. not super awful, but nonetheless annoying. it's not possible to mount something "dead center" in the rack space allotted for it. normally everything sits at the lower extreme afforded by the cage nut and you can end up with a device not fitting properly. further, this puts a certain pressure on the cage nut, although personally i've never experienced a failure due to this. this might be more of an issue for racks that have to be transported. whereas, rackstuds have no detectable slop, only the inherent tolerance of the part itself. the rackstud itself is always right in the center of the slot opening. the only vertical slop is due to the hole clearance of the device's mounting tabs. 4. cage nuts, depending on manufacturer, often make it impossible to secure something tight/flat/perpendicular to the rails. the nut itself often cannot pull up against the cage securely as if the nut/cage/rail assembly were a single piece, so you end up with devices and shelves that have an inherent wobbliness to them. this can be very annoying for some situations. whereas rackstuds install perfectly tight against the rail as a solid assembly, and give you a flat reference surface against which your equipment mates. 5. best for last! especially so for heavier equipment, cage nuts don't provide any guide for installing a device. if you have a gap underneath you have to very awkwardly balance the device while starting 2 bolts to stabilize it in place. because of the long depth of most devices, even just a few pounds can be difficult. and the smaller the opening below, the more difficult because you can't reach underneath very well. this can be super challenging. i've never heard of anyone else doing this, but i use 2 long shoulder screws as guides, similar to how guide pins can be used to install wheels on bolt-mounted uprights, like BMW. (american cars tend to use studs, not bolts.) even though the solution is simple, it's annoying and it's an extra unnecessary installation/removal step. whereas rackstuds are, well , studs. so you have a built-in guide for install/remove. ========== now for the downsides. 1. the price is absolutely horrible. definitely not worth it. i think they are missing the mark on the price/volume curve. obviously these are essentially free to manufacture (plastic basically costs nothing). of course they put a lot of design work into it and want to maximize return early on, but at this price they are killing their sales volume, IMHO. made in NZ which drives up the cost but still, it's plastic. 2. i wish they would make a nut version, for mounting equipment with captive screws. all the benefits 1-4 above would still be captured vs cage nuts. likely it would have to have a rivnut insert. i'm guessing plastic threads have to be formed differently than metal ones. as a side note, COUNT your studs. amazon shipped me a package missing many studs and all the thumbscrew/nuts. clearly this was a customer return that some useless degenerate waste of space sent back after using a bunch. if the price were more reasonable this wouldn't happen ... or if amazon would throw away returns rather than put them back in inventory as new. these ship in a zipper pouch that you can't tell if it's ever been opened. rackstuds should use a sealed kind of pouch instead where you have to tear the seal on first use. if the thumbscrews hadn't been missing i wouldn't have noticed that i was shorted on the studs as well. <breathe>