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Series II 80-Pack Combo Bag, 40 of Each Size/Color | Includes Both Red (2.2 mm) and Purple (3.2 mm) Studs | The Complete Solution for Any 19" Racks with Square Punched Vertical Rails

Series II 80-Pack Combo Bag, 40 of Each Size/Color | Includes Both Red (2.2 mm) and Purple (3.2 mm) Studs | The Complete Solution for Any 19" Racks with Square Punched Vertical Rails

Q: What kind of plastic are these? pla, abs, or pteg?

PLA, ABS or PTEG ain't going to cut it I'm afraid. While the bags are PTEG, the Rackstuds are made of Grivory, a metal replacement plastic often found in car door handles and wiper blade arms.

Q: Which version of rackstuds will fit the startech 4u 19" desktop open frame rack?

Sadly the holes on some of the Startech racks are too small for Rackstuds. Search Google for our post on this using Rackstuds and Startech as the keywords. You could try a sample pack that has both sizes/colors to test first if you like.

Q: are the samples the same quality materials as the actual 100 Pack ? Or they are just guide for figuring out the sizes

Thanks for your question. The samples are production parts and fit for field use. They just contain both sizes/colors along with eight nuts; four in black and four in turquoise so you can determine which size fits your rack best. In saying that, the new Series II Maroon studs fit 70~80% of the rails in the market.

Q: any reason why I should use the yellow lockwasher? It's hard for me to get them close together when I use those

Yes, because it's designed to hold the Rackstud in an open position so it doesn't fall through the hole. Just insert the Rackstud, place the yellow lockwasher on the correct way with the little extra bit facing the rack/Rackstud, mount your gear and then tighten the screw. It will force the little yellow bit in place. If you can't tighten it enough by hand use a screwdriver the first time to ensure proper seating of the yellow lockwasher.

Product ID: 206500179

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Details

Material
Grivory
Fastener Type
Cage
Thread Size
M 10
Exterior Finish
Grivory
Color
red and purple

💪Supports up to 20 kg per stud

🔩80 precision studs (40 each size/color)

⚙️30% faster installation

Frequently Bought Together

Rackstuds 40C Series II - Rack Screws for Server Rack Rails 19" Square Punched Vertical Rails, Perfect Cage Nut Replacement, Rack Nuts, Rack Studs Rack Mount Screws - 80 Studs; 40 of Each Size/Color

Rackstuds DUO2 1RU Series II Rack Mount Solution - Effortless Alternative to Traditional Rack Screws and Cage Nuts & Server Rack Screws Ideal for Server Hardware Setup - 2-Pack, Universal Version

Description

🔧 Upgrade your rack game—fast, secure, and stress-free!

PROVEN GLOBAL TRUST - Over 1.5 million units sold worldwide—data centers swear by Rackstuds.
ROCK SOLID SECURITY - Each stud supports 44 lbs, safeguarding your sensitive hardware reliably.
BOOST YOUR EFFICIENCY - Streamline server installs by 30%, freeing up time for what really matters.
UNIVERSAL COMPATIBILITY - Perfectly engineered for 19” rails, fitting thicker server racks with ease.
EFFORTLESS RACK MOUNTING - Tool-free setup in under 45 seconds—ditch the cage nuts hassle.

The 40C Series II Rackstuds are a premium replacement for traditional cage nuts and rack screws, designed specifically for 19” server rails. With 80 durable studs (40 of each size/color), they enable tool-free installation in under 45 seconds, support up to 20 kg per stud, and improve mounting speed by 30%. Trusted globally with over 1.5 million units sold, these studs offer enhanced strength and compatibility for thicker rails, making them the go-to solution for efficient, secure server rack management.

Specifications

Manufacturer	Rack Studs Limited
Part Number	RSL40C-S2
Item Weight	11.7 ounces
Package Dimensions	7.76 x 6.42 x 1.77 inches
Country of Origin	New Zealand
Item model number	RSL40C-S2
Size	40 Pack
Item Package Quantity	1
Mounting Type	Rack Mount
Batteries Included?	No
Batteries Required?	No

Have a Question? See What Others Asked

What kind of plastic are these? pla, abs, or pteg?

Which version of rackstuds will fit the startech 4u 19" desktop open frame rack?

are the samples the same quality materials as the actual 100 Pack ? Or they are just guide for figuring out the sizes

any reason why I should use the yellow lockwasher? It's hard for me to get them close together when I use those

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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