20-8.2-1-718 - Spring Washer

This spring washer is a precision-formed fastening component designed to provide preload tension and resistance to loosening in bolted assemblies. Its slightly conical (Belleville-style) profile allows it to exert continuous force when compressed, improving joint stability under vibration and dynamic loads.

Key Specifications:

• Type: Spring washer (conical/Belleville style)
• Inner Diameter (ID): 8.29 mm
• Outer Diameter (OD): 19.85 mm
• Thickness: 1.62 mm
• Nominal Size: M8 compatible

Performance Characteristics:

• Provides axial spring force to maintain bolt tension
• Compensates for thermal expansion and contraction
• Reduces loosening caused by vibration and shock loads
• High load capacity with minimal deflection due to conical geometry

Applications:

• Mechanical assemblies and structural fastening
• Automotive and industrial equipment
• Electrical enclosures and machinery
• Any bolted joint requiring vibration resistance

Design Features:

• Conical spring profile for consistent preload
• Compact design for use in limited axial space
• Reusable within elastic deformation limits
• Compatible with standard M8 bolts and nuts