25107117
Screw
Mack

This screw is a general yet essential fastener used to join panels, brackets, and assemblies across the truck chassis and body. The key to reliable performance lies in selecting the right combination of material, head style, and thread pitch to suit the service environment and mating materials. Torque accuracy is critical to avoid thread stripping or loosening under vibration, which can compromise alignment and function. When replacing, verify that the screw diameter and length match the OEM specification, and consider whether a corrosion‑resistant coating is needed for exterior or engine bay use. Properly installed screws contribute to a quiet, stable ride and reduce the likelihood of component movement during operation. Source One Parts Center.