40mm 4cm Fan Guard Grill PC Case Fan Protector – Metal Cooling

The 40mm fan guard is a metal wire grill that mounts directly over a 40 × 40 mm PC case or 3D printer fan, protecting blades from contact while keeping airflow open and unrestricted. This 40mm fan guard slots over standard 40 × 40 mm fans and replaces overly restrictive solid-stamped stock grilles. The open wire mesh design lets air flow freely compared to punched-plate covers, making it ideal for case mods, blowhole modifications, and any build where finger safety and clean airflow both matter. In addition, the silver-tone metal construction is durable and matches most standard case interiors. Key Features of the 40mm Fan Guard Fits standard 40 × 40 mm fans — compatible with PC cases, 3D printers, and industrial enclosures Guard wire diameter: 35mm — sized to protect the blade area without blocking mounting holes Open wire mesh construction — less restrictive than solid stamped grilles Metal build, silver-tone finish — durable and rust-resistant Lightweight at 9g — adds no meaningful load to case panels or 3D printer frames Protects fan blades and prevents fingers or cables from contacting spinning blades Drop-in replacement for restrictive stock case fan grilles Use Cases PC case builds — protect 40mm intake or exhaust fans from cable snagging Case mods and blowhole installations where a clean, open grill is needed 3D printer enclosures — guard enclosure panel or control box fans Industrial or DIY enclosures requiring a standard 40mm fan safety guard Works Well With 40–50–80–120mm Dustproof Fan Case Cover — adds a foam dust filter behind the guard to keep debris out of your fans Project Ideas & Tutorials How to Install Case Fans into a Desktop PC — YouTube — a step-by-step video guide to fitting and securing fans and guards in a PC case The Ultimate Guide to Installing a Fan Grill on Your Computer — covers sizing, alignment, and screw types for fitting metal fan grills to standard fan openings Package Contents 1 × 40mm metal fan guard