Description
The M12 Spring Washer is a split lock washer used throughout Virtus Equipment and ZERMA America granulators and shredders at M12 fastener positions where vibration resistance is critical. Unlike flat washers, which serve primarily to distribute clamping load, spring washers provide an active locking function — the split ring design creates a spring tension that maintains bolt preload and the hardened edges bite into both the fastener bearing surface and the mating component to resist rotation and loosening under dynamic loading conditions.
Technical Specifications:
SKU: 80010860
Thread Size: M12
Type: Spring Washer (Split Lock Washer)
Standard: DIN 127 / ISO 7090
Important Note: Replace at every fastener removal — do not reuse previously compressed spring washers
Related Parts: M16 Thin Washer — SKU: 80010760 | M20 Thin Washer — SKU: 80010780 | M20 Thick Washer — SKU: 80010781
Sold As: Individual washer; bulk quantities available
Key Features:
Active Vibration Locking: Split ring spring tension maintains bolt preload and resists fastener loosening under the continuous vibration and dynamic forces of granulator and shredder operation.
Hardened Bite Edges: Sharp split ends bite into fastener and mating surface bearing faces to provide mechanical resistance against rotation.
OEM-Specification Profile: M12 spring washer geometry matches original Virtus Equipment and ZERMA America assembly specifications for positions requiring active locking action.
Single-Use Design: Spring washers should be replaced each time a fastener is removed — a previously fully compressed washer loses its locking effectiveness.
Bulk Availability: Available individually or in bulk quantities — spring washers are a high-consumption consumable recommended for maintenance department stocking programs.
Applications:
Granulators and shredders subject fasteners to constant vibration from rotor imbalance, cutting forces, and motor harmonics. Spring washers are a simple, low-cost insurance against fastener loosening that can lead to misalignment, component damage, or unsafe machine conditions. Always replace spring washers any time fasteners are removed — a previously compressed spring washer has reduced locking effectiveness and should never be reused.
Compatibility: Virtus Equipment and ZERMA America granulators and shredders (multiple models — see machine parts documentation)
