S-91116A370 7.4 mm ID x 22 mm OD DIN 9021 Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with Black-Oxide 18-8 Stainless Steel construction, ideal for harsh industrial environments
• Precise dimensional fit with 7.4mm ID and 22mm OD ensuring reliable performance with M7 screws
• Enhanced load distribution through consistent 1.8-2.2mm thickness, reducing surface pressure and preventing material damage
• Excellent mechanical durability with Rockwell B68 hardness, maintaining structural integrity under repeated stress
• Standardized compatibility meeting DIN 9021 specifications for seamless integration into metric fastener systems
• Environmental compliance assurance with RoHS 3 and REACH regulations, supporting sustainable manufacturing practices
• Reliable long-term performance in demanding applications due to material stability and protective black-oxide finish

Professional Applications & Engineering Value

These M7 metric flat washers deliver critical engineering value by addressing common industrial challenges. The Black-Oxide 18-8 Stainless Steel construction provides exceptional corrosion resistance, making them suitable for outdoor equipment, marine applications, and chemical processing facilities where moisture and corrosive agents are prevalent. The precise DIN 9021 dimensional standards ensure perfect compatibility with M7 screw sizes, eliminating installation issues and reducing assembly time. In automotive, machinery, and structural applications, these washers effectively distribute clamping force, prevent fastener loosening from vibration, and protect sensitive surfaces from galling. The combination of Rockwell B68 hardness and controlled thickness (1.8-2.2mm) guarantees consistent performance under high-load conditions, while the black-oxide finish enhances both aesthetic appeal and additional corrosion protection.

Specification Summary & Compliance

This M7 metric flat washer maintains precise dimensional tolerances per DIN 9021 standards with 7.4mm inner diameter, 22mm outer diameter, and 1.8-2.2mm thickness range. Manufactured from 18-8 Stainless Steel with Rockwell B68 hardness, it meets rigorous industrial specifications. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory adherence for global supply chains.