M12 Spring Lock Washer – Vibration-Resistant Fastening
Enhance your fastening reliability with the M12 Spring Lock Washer, precision-engineered to DIN 127B standards. Designed with a split-helical shape, this washer provides effective locking by maintaining tension and resisting loosening caused by vibration, dynamic loads, or thermal expansion.
Perfectly sized for M12 bolts, it’s available in zinc-plated steel for general use or stainless steel (A2/A4) for superior corrosion resistance in harsh environments.
✅ Key Features:
Fits M12 fasteners – 12.2 mm ID, 21.1 mm OD, 2.5 mm thick
Split design offers spring tension to maintain bolt preload
Prevents self-loosening under vibration or shock
Available in zinc-plated and stainless steel (A2/A4)
Complies with DIN 127B standard
Item Attributes
| Size | Uncompressed Height 5.0–5.9 mm |
| Nominal diameter | Inner Diameter 12.2 mm (fits M12 threads) , Outer Diameter 21.1 mm |
| Weight | ~3.82 kg (per 1,000 pcs) |
| Thickness | 21.1 mm |
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