MX Fuse Holder Screw Cap Backelite Moulding (MX-407)

This is the classic screw-cap fuse holder electricians reach for when a project needs a replaceable, field-serviceable fuse rather than a soldered-in one. The Bakelite moulding stays dimensionally stable and electrically insulating even when the fuse inside is running warm, which is exactly the condition a thermoplastic housing can struggle with over time. The screw cap holds a standard 5x20mm glass cartridge fuse snugly and lets anyone swap it in seconds without tools, which matters on a panel that a technician who isn't the original builder may service months later. Two screw-mount tabs let it sit flush against a chassis or enclosure wall near the supply entry point, where fuse protection belongs. It's a small part, but it's the difference between a project that fails safely and one that doesn't fail safely at all.