Losi LOSA6228 Hardened Screw Set 5-40

The Losi LOSA6228 is a hardened 5-40 screw set, a genuine Losi hardware pack manufactured from hardened steel for use at mounting points that see higher stress or repeated loading. The hardening process gives these screws greater resistance to stripping and rounding compared to standard hardware, which matters at locations on the chassis where screws are removed and reinstalled frequently during maintenance or tuning.

Standard screws can wear out their hex sockets or threads faster in high-torque or high-vibration areas, so upgrading to hardened hardware at those specific points extends the life of both the screw and the surrounding threads it engages. This set is a smart addition to your hardware kit whether you're doing a full rebuild or simply reinforcing the mounting points that see the most wear on your build. This genuine Losi pack matches the factory 5-40 specification, so it's a direct, dependable replacement. Keep a set on hand for your toughest mounting points.