S-91235A313 3.2 mm ID x 7 mm OD Heavy-Vibration-Resistant Spring Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance ensures reliable, long-term fastening in high-stress environments, reducing maintenance needs and equipment downtime.
• 17-7 PH stainless steel construction offers excellent corrosion resistance and high strength, ideal for harsh industrial and outdoor applications.
• Precision-engineered M3 screw compatibility with 3.2mm ID and 7mm OD provides a secure, snug fit, preventing loosening under dynamic loads.
• Rockwell C38 hardness rating delivers exceptional durability and wear resistance, extending the washer's service life in demanding conditions.
• Compact 0.6mm thickness and 0.9mm overall height allows for easy integration into tight spaces without compromising performance.
• Full RoHS 3 and REACH compliance guarantees environmental safety and regulatory adherence, supporting sustainable procurement practices.
• Optimized spring lock design maintains consistent tension and prevents back-off, enhancing assembly integrity in vibrating machinery.

Professional Applications & Engineering Value

This spring lock washer is engineered to address critical challenges in industrial settings where vibration and dynamic loads compromise fastener integrity. Crafted from 17-7 PH stainless steel, it combines high tensile strength with excellent corrosion resistance, making it suitable for applications in automotive, aerospace, and heavy machinery. The M3 screw size and precise dimensions (3.2mm ID, 7mm OD) ensure a perfect fit, while the spring lock mechanism actively counters loosening, reducing the risk of equipment failure. Its Rockwell C38 hardness and compliant surface finish enhance durability, providing reliable performance in environments exposed to moisture, chemicals, or temperature fluctuations. Ideal for vibration-resistant assemblies, this washer delivers consistent clamping force, prolonging the life of critical components and minimizing operational disruptions.

Specification Summary & Compliance

This washer features precise dimensions: 3.2mm inner diameter, 7mm outer diameter, 0.6mm thickness, and 0.9mm overall height, designed for M3 screw applications. It adheres to standard tolerance classes for consistent fit and function. Manufactured from 17-7 PH stainless steel with a Rockwell C38 hardness, it meets industry requirements for strength and wear resistance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and supports environmental and safety standards in global supply chains.