S-97471A104 8.4 mm ID x 22 mm OD DIN 432 Tab Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance ensures reliable locking under dynamic loads, preventing fastener loosening in demanding applications.
• Precise M8 screw compatibility with an 8.4mm internal diameter for a perfect fit, reducing installation errors and improving assembly speed.
• Robust steel construction with Rockwell B50 hardness offers excellent durability and resistance to wear and deformation.
• DIN 432 standard compliance guarantees consistent quality, dimensional accuracy, and interchangeability for industrial use.
• Optimized tab design (3.5mm width) provides secure engagement, effectively resisting rotation and maintaining clamp load.
• Environmental regulation compliance with RoHS 3 and REACH ensures safe, sustainable use in global markets.
• Compact 1mm thickness and 4mm overall height allows for space-efficient designs without compromising locking performance.

Professional Applications & Engineering Value

This M8 Tab Lock Washer, manufactured to DIN 432 standards, is engineered to solve critical vibration-induced loosening in industrial machinery, automotive assemblies, and heavy equipment. Its steel material and Rockwell B50 hardness provide the necessary strength to withstand cyclic stresses, while the tab lock design bites into both the bearing surface and nut, creating a mechanical lock that maintains bolt preload. This prevents costly downtime and safety hazards in high-vibration environments, ensuring long-term reliability for metric system fastening applications. The precise 8.4mm ID and 22mm OD dimensions facilitate easy integration, making it an ideal locking solution for engineers prioritizing assembly integrity and compliance.

Specification Summary & Compliance

This washer features an internal diameter of 8.4mm, external diameter of 22mm, thickness of 1mm, and overall height of 4mm, with a tab width of 3.5mm, designed for M8 screw sizes. It conforms to DIN 432 specifications for dimensional and performance standards, ensuring precise Class 2A/ISO tolerance fit. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, affirming its adherence to environmental and safety requirements for industrial components.