Conical Spring Washer - Anti-Loosening Lock Washer
Product features
The conical spring washer is a tapered, split lock washer typically made from hardened steel with a range of sizes and surface finishes to meet different torque and corrosion requirements. By exerting axial pressure beneath the nut or bolt, its spring-like action maintains preload and prevents fastener loosening under vibration and thermal cycling, improving joint reliability and service life. The conical geometry and offset split edge—one end higher than the other—create a resilient biasing force so the washer compresses to hold components tightly in place and resist rotation.
Team strength
Our engineering and manufacturing team combines 20+ years of fastener expertise, precision machining, and materials science to deliver conical spring washers that prevent loosening under vibration. Core strengths include dedicated R&D for optimized conical profiles, in-house metallurgical testing, ISO-certified quality control, and high-volume automated production. Value-focused services include rapid prototyping, custom sizing, engineering support for torque and preload specifications, strict lot traceability, and responsive after-sales assistance. This integrated team approach ensures consistent performance, shorter lead times, reduced assembly failures, and scalable supply for OEM and maintenance programs—providing customers reliable anti-loosening solutions tailored to real-world applications with measurable lifecycle and cost-savings.
Why choose us
Our engineering and manufacturing team combines decades of fastening expertise with precision production capability to deliver high-performance conical spring washers. Core strengths include material science proficiency, strict quality control, and advanced tooling to ensure consistent anti-loosening performance under vibration and thermal cycles. Value-focused services—rapid prototyping, custom sizing, and batch testing—reduce development time and warranty risk for OEMs. Dedicated supply-chain coordinators and responsive technical support ensure on-time delivery, compliant certification, and application guidance. Together, our team turns rigorous testing data into reliable fastener solutions that improve assembly safety, reduce maintenance costs, enhance product longevity and strengthen customer trust every day, consistently.
Lock Washers add pressure to the nut or bolt to prevent loosening. Most common lock washers are split with one end is higher than the other. This provides a spring like action, adding pressure to hold the joined components tightly in place.
xarella.huang@jm-fastener.comSince our establishment in 2006, JM has been adhering to the mission of creating maximum value for customers by providing differentiated services, and making a positive contribution to the society.