S-91717A134 5.5 mm ID x 18 mm OD Clipped Washers

Key Features & Benefits at a Glance

• Enhanced Durability: Rockwell B55 hardness rating ensures long-lasting performance under repetitive stress and vibration.
• Secure Fit & Anti-Rotation: The 14.9mm clipped width prevents the washer from turning during assembly, providing a stable and reliable fastening point.
• Precision Sizing for M5 Screws: 5.5mm inner diameter and 18mm outer diameter are engineered for a perfect fit with M5 screws, distributing load effectively.
• Optimal Thickness for Load Distribution: 0.9-1.1mm thickness provides the ideal balance between surface coverage and material strength, reducing point stress.
• Compliance with Global Standards: Meets RoHS 3 and REACH regulations, ensuring safe use in various international markets and applications.
• Robust Steel Construction: Made from high-quality steel, offering excellent resistance to wear and corrosion in industrial environments.
• Metric System Compatibility: Designed for metric fastening systems, ensuring seamless integration with other metric components.

Professional Applications & Engineering Value

This M5 metric steel clipped washer is engineered to address common challenges in industrial assembly, such as loosening under vibration and uneven load distribution. The clipped design with a precise 14.9mm width locks the washer in place, preventing rotation and maintaining alignment in high-vibration applications like automotive, machinery, and electrical enclosures. Its Rockwell B55 hardness ensures it withstands mechanical stress without deforming, while the steel material provides reliable corrosion resistance. By offering consistent 0.9-1.1mm thickness and compliance with RoHS and REACH, this washer reduces maintenance needs and supports sustainable manufacturing practices, making it a trusted choice for engineers seeking durability and regulatory adherence.

Specification Summary & Compliance

This washer features precise dimensions: 5.5mm ID, 18mm OD, 0.9-1.1mm thickness, and 14.9mm clipped width, designed for M5 screw sizes. It adheres to standard metric measurement systems and is manufactured with a Rockwell B55 hardness for consistent performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets strict environmental and safety standards for industrial use.