65Mn Spring Steel Elastic Washers For Prevent Bolt Loosening And Distribute Pressure

Product Description
An Elastic Washer is a high-reliability fastener accessory designed to prevent bolt loosening and distribute pressure, manufactured with 65Mn spring steel (elastic modulus ≥206GPa) via precision stamping. This product features excellent elastic recovery performance—when compressed during installation, it generates stable preload to compensate for bolt loosening caused by vibration, thermal expansion, or material creep, effectively enhancing connection reliability. The surface is treated with galvanizing + passivation or black oxide coating, providing corrosion resistance (salt spray resistance ≥500 hours) and preventing rust-induced failure. With a thickness range of 1.5-5mm and inner diameter matching M8-M30 bolts, it is widely compatible with standard high-strength bolts and ordinary fasteners. The washer’s rounded edge design avoids scratching the connected workpiece surface, while the uniform stress distribution reduces local pressure concentration on the base material, protecting thin-walled components from deformation. It undergoes strict fatigue testing (100,000 compression-recovery cycles without permanent deformation) and complies with GB/T 93 and ISO 7089 standards, ensuring consistent performance in industrial machinery, steel structures, and mechanical equipment. Installation requires no special tools, and it can be used with bolts and nuts as a complete set, suitable for both static and slight dynamic load scenarios. Professional technical support includes washer size matching guidance and anti-loosening system optimization, helping customers improve the durability of fastener connections.

Applications
Elastic Washers are versatile and cost-effective fastener accessories widely used in machinery, construction, and industrial equipment. Certified by ISO 9001 and GB/T 93, they meet international fastener standards, ensuring reliable performance in general and precision connection scenarios. These washers are suitable for diverse applications, including steel structure bolt connections (beam-column joints, truss nodes), industrial machinery assembly (pumps, motors, gearboxes), automotive and agricultural equipment fasteners, electrical cabinet and instrumentation fixing, and furniture and hardware installation. They are particularly essential for vibration-prone equipment (e.g., generators, compressors) and outdoor structures (e.g., communication towers, billboards) where loosening risks exist. The minimum order quantity is 500 pieces for standard specifications (M8-M30, thickness 1.5-5mm), and customized options are available for material (304 stainless steel for corrosion-prone environments), thickness, and inner diameter to meet specific compatibility needs. Competitive pricing and bulk purchase discounts (for orders over 10,000 pieces) enhance cost-effectiveness, while the short delivery time (1-3 workdays for standard orders) supports urgent production and construction schedules. With a monthly supply capacity of 20,000,000 pieces, the manufacturer ensures timely delivery even for large-scale manufacturing projects. The 65Mn spring steel material and anti-corrosion surface treatment ensure durability in indoor, outdoor, and industrial environments, from dry workshops to humid coastal areas. Customization options also include high-temperature resistant materials (Inconel alloy) for high-heat equipment (e.g., industrial furnaces) and enhanced elastic performance for precision machinery. Whether it's for new product assembly or old equipment maintenance, the Elastic Washer delivers reliable anti-loosening and pressure-distribution performance.