S-95211A120 3.2 mm ID x 9 mm OD DIN 9021 Oversized Washers

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with passivated 316 stainless steel construction, ideal for harsh environments and chemical exposure
• Precise fit and reliable load distribution thanks to 3.2mm ID and 9mm OD dimensions conforming to DIN 9021 standards
• Enhanced durability and deformation resistance with Rockwell B75 hardness for long-term performance under pressure
• Optimal compatibility with M3 screws ensuring secure fastening and reduced assembly time in metric applications
• Superior surface protection through passivation, minimizing iron contamination and extending service life
• Compliance with global environmental regulations including RoHS 3 and REACH, making them safe for industrial and commercial use
• Consistent thickness (0.7-0.9mm) providing uniform spacing and vibration resistance in assembled components

Professional Applications & Engineering Value

These M3 metric flat washers deliver critical engineering value by addressing common industrial challenges like corrosion-induced failure and inconsistent load bearing. Made from passivated 316 stainless steel, they excel in demanding sectors such as marine equipment, chemical processing, and food machinery, where moisture and aggressive substances are prevalent. The DIN 9021 specification ensures precise dimensional accuracy, preventing loosening under vibration and distributing clamp load effectively to protect sensitive surfaces. With their Rockwell B75 hardness and controlled thickness, these washers maintain integrity in high-stress assemblies, reducing maintenance needs and downtime. This combination of material excellence and standardized design makes them a reliable choice for industrial washers in OEM and MRO applications, enhancing the longevity and safety of fastened joints.

Specification Summary & Compliance

This flat washer features a 3.2mm inner diameter, 9mm outer diameter, and 0.7-0.9mm thickness, manufactured to DIN 9021 standards for consistent metric sizing and performance. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for global industrial markets. The passivated 316 stainless steel material provides reliable corrosion resistance, meeting common industry requirements for durable, precision-engineered washers.