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China Spring Washers Factory - High-Quality Industrial Open Gasket Suppliers for Optimal Bolt Performance
The spring washer has good anti-loose effect and anti-seismic effect. The general direction of the thread is right-handed, and the spiral direction of the spring washer is left-handed. After tightening the nut, the elastic reaction generated by the washer flattening compels the screw threads.
Anti-Loose & Anti-Seismic
Provides excellent stability and resistance to loosening under high-vibration conditions.
Left-Handed Spiral
Designed with a left-handed spiral direction to oppose the standard right-handed thread.
Elastic Flattening Reaction
Generates high elastic tension after tightening to hold screw threads firmly in place.
At the same time, when the fastener combination is subjected to the axial force of the vibration of the bolt, due to the elastic deformation of each part after the stress, sometimes there will be a gap between the fasteners, which is easier to loose. The tip of the spring washer’s oblique mouth is against the supporting surface of the bolt or nut and the connected part, which can make up for the gap between the instantaneous fasteners and prevent loosening.
Frequently Asked Questions
Q: What are the primary functions of a spring washer?
A spring washer provides a strong anti-loose effect and anti-seismic effect, securing fastener combinations under vibration.
Q: How do the thread and spiral directions of spring washers align?
While the general direction of the thread is right-handed, the spiral direction of the spring washer is left-handed to prevent loosening.
Q: What happens when the nut is tightened over a spring washer?
After tightening the nut, the spring washer flattens and generates an elastic reaction that continuously compels the screw threads.
Q: Why do fasteners loose contact during bolt vibration?
When subjected to the axial force of vibration, elastic deformation of the stressed parts can create temporary gaps between fasteners, leading to loosening.
Q: How does the oblique mouth of a spring washer prevent loosening?
The tip of the oblique mouth presses firmly against the supporting surface of the bolt or nut and the connected part, compensating for instantaneous gaps.
















