Connecting disc for threaded connections - has disc hardened at face but internally toughened with grooved profile to locate against shear force

摘要

A connecting disc for threaded connections takes the form of a steel disc between the bolt head and the component to be secured. The disc is hardened on both faces but toughened in the centre, has a specific mass and has specific ring section thickness (5) in connection with the components. Both sides have raised mounting grooves (8) to contact on initial compression, and adjacent planar ring grooves (12) for a small amount of auxiliary pre-tensioning. ADVANTAGE - High shear force tolerance, good elastic behaviour.