The nut H 27086 is a high-strength fastening component used in critical bolted assemblies of the Sulzer ASL25 engine. Designed to maintain consistent clamping force under vibration, thermal cycling, and continuous mechanical stress, this nut ensures secure retention of structural and functional components. Its precisely machined threads and controlled material properties provide reliable preload, resistance to loosening, and long-term dimensional stability. Although compact in size, the H 27086 nut plays an essential role in safeguarding mechanical integrity and operational reliability in demanding marine and industrial applications.