S-93501A005 0.126" ID x 0.217" OD Heavy-Vibration-Resistant Spring Lock Washers for Socket Head Screws

Key Features & Benefits at a Glance

• Superior vibration resistance with dual top and bottom serrations that bite into mating surfaces, preventing loosening under dynamic loads.
• Enhanced durability and wear resistance from Rockwell C40 hardened steel construction, ensuring long service life in harsh industrial environments.
• Versatile compatibility with both No. 5 and M3 screw sizes, supporting inch and metric systems for global application flexibility.
• Reliable secure fastening due to precise dimensions (0.126" ID, 0.217" OD) that maintain fit and function in tight assembly spaces.
• Environmental and regulatory safety with full RoHS 3 and REACH compliance, reducing risks in regulated industries.
• Optimal load distribution from controlled thickness (0.018") and height (0.035"), minimizing stress on connected components.
• Cost-effective maintenance reduction by resisting corrosion and fatigue, lowering downtime and replacement frequency.

Professional Applications & Engineering Value

This spring lock washer is engineered to address common industrial challenges like vibration-induced fastener failure and assembly instability. The steel material with Rockwell C40 hardness provides exceptional strength, while the dual serration on top and bottom surfaces ensures maximum grip, preventing rotation and loosening in high-stress applications such as machinery, automotive systems, and electronic enclosures. Its compatibility with both No. 5 and M3 screw sizes makes it ideal for mixed-unit projects, offering reliable performance in vibration-resistant setups. By maintaining precise tolerances and robust construction, it enhances safety and longevity in demanding environments, reducing maintenance needs and improving overall engineering efficiency.

Specification Summary & Compliance

This washer features precise dimensions including an ID of 0.126", OD of 0.217", thickness of 0.018", and overall height of 0.035", designed for use with No. 5 and M3 screws. Manufactured from high-quality steel with a hardness of Rockwell C40, it adheres to standard industrial requirements for fit and function. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets environmental and safety standards for global use.