Fan screws are a type of screw ideally used for mounting fans to chassis or finger guards to fans. It is critical to use the proper screw for a secure and durable assembly that can withstand vibration, and join fan components easily and quickly. PENCOM's hardened fan screws can form threads in various materials, such as mild steel, aluminum, and hard plastics. Truss head and 130-degree flat head styles are available in three different thread sizes and an attractive bright nickel finish. Contact us regarding any customization requests or application questions.