S-95211A270 7.4 mm ID x 22 mm OD DIN 9021 Oversized Washers

Key Features & Benefits at a Glance

• Exceptional corrosion resistance from passivated 316 stainless steel construction, ideal for harsh environments and chemical exposure
• Precise dimensional fit with 7.4mm ID and 22mm OD, ensuring secure seating and even load distribution for M7 screws
• Enhanced durability and deformation resistance due to Rockwell B75 hardness, maintaining performance under high stress
• Reliable compliance with DIN 9021 standards, guaranteeing consistent quality and interchangeability in metric assemblies
• Superior surface protection through passivation, increasing longevity and preventing galling or seizing
• Broad industrial safety compliance with RoHS 3 and REACH regulations, ensuring environmental and workplace safety
• Optimized thickness range (1.8-2.2mm) providing flexibility for various clamping and spacing requirements

Professional Applications & Engineering Value

These M7 metric flat washers are engineered to address critical challenges in industrial and mechanical assemblies. The passivated 316 stainless steel material offers superior resistance to corrosion, pitting, and oxidation, making them ideal for applications in marine, chemical processing, and food-grade environments where moisture and aggressive substances are present. The DIN 9021 specification ensures precise dimensions and consistent performance, preventing loosening and distributing loads evenly to protect sensitive components from damage. With a Rockwell B75 hardness, these washers maintain structural integrity under vibration and high torque, reducing maintenance needs and extending equipment lifespan in demanding settings such as machinery, automotive, and structural frameworks.

Specification Summary & Compliance

This flat washer conforms to DIN 9021 standards for dimensional accuracy, featuring an internal diameter of 7.4 mm, external diameter of 22 mm, and thickness range of 1.8–2.2 mm, designed for use with M7 screw sizes. Manufactured from passivated 316 stainless steel with a hardness of Rockwell B75, it meets stringent industry specifications. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety requirements for industrial components.