High-Quality 1 Inch Spring Washer - ANSI Open Gasket Made in China by Trusted Suppliers and Factory
Anti-Seismic Design
Features a left-handed spiral direction that opposes the standard right-handed thread direction for optimal anti-loose performance.
Elastic Reaction
Tightening the nut flattens the washer, generating a continuous elastic reaction force that securely compels the screw threads.
Gap Compensation
The oblique mouth tip presses against the mating surfaces, instantly filling gaps caused by vibration and axial force.
Frequently Asked Questions
How do spring washers prevent threaded fasteners from loosening?
Spring washers prevent loosening through two primary mechanisms: the elastic reaction force generated when the washer is flattened against the screw threads, and the physical resistance provided by the tip of the oblique mouth against the mating surfaces.
What is the relationship between the thread direction and the spring washer spiral?
Typically, the general direction of the screw thread is right-handed, whereas the spiral direction of the spring washer is left-handed. This opposing orientation helps resist loosening forces.
What happens when a spring washer is fully tightened?
When the nut is tightened, it flattens the spring washer. This deformation creates a continuous elastic reaction force that exerts constant pressure against the screw threads, keeping the joint secure.
Why do vibration and axial force cause fasteners to loosen?
Vibration subjects the bolt to axial forces, causing temporary elastic deformation in the assembly parts. This deformation can create minute gaps between the fasteners, making them susceptible to loosening.
What role does the oblique mouth of the spring washer play?
The tip of the oblique mouth presses firmly against the supporting surface of the nut or bolt and the connected part. This physical bite compensates for instantaneous gaps caused by vibration, preventing the assembly from backing off.














