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Stainless steel spring washers are specialized fastener components designed to maintain tension in bolted assemblies. Unlike regular flat washers, they provide elasticity, resist loosening under vibration, and offer corrosion resistance. These advantages make them essential in critical mechanical applications, ensuring long-term reliability and reducing maintenance requirements.
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One of the primary advantages of stainless steel spring washers is their ability to prevent loosening in bolted connections. The washer’s conical or wave-shaped design exerts continuous pressure on the fastener, compensating for material relaxation and vibration. In contrast, flat washers only distribute load and provide minimal resistance to loosening.
In high-vibration environments, such as automotive or industrial machinery, fasteners can gradually loosen over time. Stainless steel spring washers absorb vibrational energy and maintain clamping force, significantly reducing the risk of joint failure compared to flat washers.

Made from stainless steel, these washers resist rust, oxidation, and chemical exposure. This makes them suitable for outdoor applications, marine environments, and chemical processing equipment. Flat washers made from carbon steel or non-treated metals are more prone to corrosion, which can compromise fastener integrity and lead to premature maintenance.
Stainless steel spring washers maintain their mechanical properties over extended service periods. Their elasticity ensures consistent tension, reducing the likelihood of joint loosening or failure. This durability translates to fewer replacements and lower operational costs, particularly in critical applications.
While flat washers primarily protect surfaces from damage and distribute load, stainless steel spring washers combine load distribution with tensioning ability. They reduce the risk of bolt loosening due to material creep or thermal expansion, ensuring uniform stress across the assembly and improving structural stability.
The superior tension retention and corrosion resistance of stainless steel spring washers reduce maintenance frequency and extend the life of bolted assemblies. This leads to lower labor costs, fewer shutdowns, and less frequent replacement of both washers and associated fasteners, making them a cost-effective choice for long-term applications.
| Feature | Flat Washer | Stainless Steel Spring Washer |
| Prevents loosening | Limited | High |
| Vibration resistance | Low | Excellent |
| Corrosion resistance | Dependent on material | High (stainless steel) |
| Maintenance frequency | Higher | Lower |
Stainless steel spring washers provide multiple advantages over regular flat washers, including enhanced tension retention, vibration resistance, corrosion protection, and long-term reliability. Their ability to maintain secure bolted connections in demanding environments makes them an essential component in automotive, industrial, and construction applications, ultimately reducing maintenance costs and improving assembly performance.
ThreadTolerance: 6gstandardDIN 13-15、DIN 13-12Rod diameter dd≤M20:A2-70、A4-70;M20<d≤M39:A2-50、A4-50;d≥M39:C3、C4;d<M39
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