This bolt secures components within the threshing drum, electrical system, or hydraulic system of the parent self-propelled forage harvester or combine. It is a metric-threaded fastener that clamps assemblies in place, maintaining the structural integrity of the machine under load. A loose or missing bolt in these locations can cause component misalignment, vibration, or loss of drive function. When reinstalling, clean the threads and tighten to the specified torque value.