1、Enhanced Stability: : Designed for 25/30mm thick computer fans, providing secure and stable connection for your desktop computer. Easy installation with direct screw tightening for CPU cooling fans, taking up minimal space. 2、304 Stainless Steel Material: Upgraded screws to solve rusting issues, precise machined aluminum alloy washers combined with excellent anodizing process for exquisite finish. 3、Fit for CPU Coolers: Ideal for gamers, professionals, and anyone looking for stable and quiet operations for their desktop computers. Precisely tailored to your CPU cooler. 4、Compatible with Water Cooling Systems: Suitable for all brands of water cooling and PC case cooling fans. Easy to install and ensure your cooling system operates efficiently. 5、Easy Installation: With user friendly design, these screws make the installation and securing of your computer cooling fans a breeze. Save time and effort, allowing you to focus on building and optimizing your PC setup. Item Type: CPU Fan Screw Set Material: Aluminum Alloy + Stainless Steel Screw Size: Approx. 9.6x5.6mm/0.37-0.22in Washer Size: Approx. 7.8x2mm/0.3-0.07in Nut Size: Approx. 25 (H) x 6 (Bottom) x 4 (Top) mm/0.98x0.23x0.15in Application: for Various Brands Water Cooling, PC Case Cooling Fans 4 x Screws 4 x Nuts 4 x Washers 1 x Wrench