Upgrade your Stihl equipment with the Spline Screw IS-M6x20 (Genuine Stihl). This fastening screw is used on a wide range of Stihl machines, including the HL75 and HL75K. It features an internal spline (Torx-style) drive for secure, positive engagement and reduced cam-out. Constructed from durable, corrosion-resistant coated steel in a bright silver finish, it�s built for reliable performance in outdoor and construction environments. Shop genuine Stihl parts for dependable fit and function.