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🚀 Rack smarter, not harder—ditch cage nuts forever!
Rackstuds 40C Series II is a zinc-plated, tool-free rack mounting solution designed for 19" square punched rails. It replaces traditional cage nuts, enabling 30% faster installation with front access, supports over 400 lbs shear force, and is trusted by data centers globally with over 1.5 million units sold.













| ASIN | B07W1KZXFL |
| ASIN | B07W1KZXFL |
| Best Sellers Rank | #103,244 in Computers ( See Top 100 in Computers ) #361 in Computer & Server Racks |
| Brand | Rackstuds |
| Color | red and purple |
| Compatible Groove Diameter | 2.3 Millimeters |
| Customer Reviews | 4.6 4.6 out of 5 stars (332) |
| Customer reviews | 4.6 4.6 out of 5 stars (332) |
| Date First Available | 28 November 2019 |
| Drive Style | Square |
| Exterior Finish | Zinc |
| Fastener Type | Square |
| Finish Types | Zinc |
| Global Trade Identification Number | 09421903192172 |
| Grade Rating | Industrial |
| Inside Thread Size | M10 |
| Item Diameter | 2.2 Millimeters |
| Item model number | RSL40C-S2 |
| Manufacturer | Rack Studs Limited |
| Manufacturer | Rack Studs Limited |
| Material Type | Metal |
| Maximum Shear Strength | over 400 lbs |
| Metal Type | Zinc |
| Model | RSL40C-S2 |
| Number of Pieces | 40 |
| Package Dimensions | 19.1 x 16 x 3.81 cm; 331 g |
| Part Number | RSL40C-S2 |
| Screw Head Style | Flat |
| Set Name | Red and Purple Combo |
| Size Name | 40 Pack |
| Thread Class | Class 2B |
| Thread Coverage | Unthreaded |
| Thread Size | 10 |
| Thread Style | Right Hand, Metric, External |
| Thread Type | Unified National Coarse (UNC) |
| Unit Count | 80 Count |
N**U
Alles bestens
N**T
C'est vraiment bien pensé ! Je recommande a 100%
B**O
Por fin un sistema para trabajar en racks sin dejarte las uñas y los dedos y pudiendo trabajar uno solo sin ayuda: colocas los cuatro Rackstuds del dispositivo que quieras montar en el rack, insertas el dispositivo y ya sólo tienes apretar las "tuercas" de cierre sin hacer malabarismos sujetando el dispositivo. Ahora ya sólo falta que bajen de precio y adiós a los tradicionales tornillos con tuerca de rack.
H**U
I used it for helping with device installations in OMO situations. Works well.
A**R
Installation was great and easy, I used it on a server that I often work on it so it's easier to dismount and remount. After installation, I needed to take remove it due to a potential hardware issue, so I dismounted it, and upon the second time remounting, one of the caps was stripped by the screwdriver. It's the largest bit I have and worked fine with the other cap, and a spare I pulled out of the bag. UPDATE: The seller responded to make things right, I'm happy for it. Updated the ratings. I of course had to remove it with a flat head, so these being plastic and can easily be stripped worries me. I reached out to the manufacturer but no response. Thus lost of stars as I have concerns about the quality and lack of support.