Double Spring Washers

1. Experience

As a professional spring washer manufacturer specializing in anti-loosening fastening systems for over ten years, we have in-depth knowledge of the elasticity ratio, heat treatment process, and fatigue life of double-layer spring washers. From material selection to finished product testing, each batch undergoes elasticity testing and salt spray verification to ensure stable and reliable performance.

2. Customization

We support customization of inner diameter, outer diameter, thickness, material (65Mn/304/316/phosphating/Dacromet), and non-standard elastic coefficients, providing free sample verification. Whether you are replacing an existing solution or designing a new project, we can respond quickly, eliminating long wait times for non-standard products.

3. Scale

Multiple automated stamping production lines, combined with continuous mesh belt heat treatment furnaces, produce millions of washers daily, with commonly used specifications readily available. Our direct supply model makes spring washer prices more transparent and competitive; urgent orders can be shipped the same day.

4. Service

Our professional service team provides full support from selection and matching to installation torque recommendations. Our own logistics ensures on-time delivery, and our after-sales team is available 24/7 to respond to any unexpected issues and provide technical support. Choosing us means choosing a reliable fastener partner who is always online to prevent loosening.

As a reliable fastener supplier, we offer free samples and technical support. Bulk purchases of spring washers offer more competitive pricing, and we provide fast shipping from in-stock items.

Double spring washers are widely used in high-vibration and alternating load conditions requiring high-strength anti-loosening properties. Their powerful rebound force generated by the superimposed double-layer elastic structure can continuously maintain bolt preload, effectively suppressing nut loosening caused by mechanical vibration, thermal expansion and contraction, or impact loads. They are commonly used in construction machinery (excavators, crushers), rail transportation (locomotive bogies, rail fasteners), wind power equipment (tower connections, nacelle fastening), heavy mining machinery, and agricultural power transmission. Choosing a professional spring washer manufacturer ensures that the elastic coefficient and fatigue life meet standards. As a reliable fastener supplier, we offer 65Mn spring steel and 304/316 stainless steel materials. Direct production makes our spring washers more competitively priced—the double-layer anti-loosening design does not increase installation space and can directly replace single-layer washers, providing double the safety for critical connections.