S-91860A077 7 mm ID x 13.6 mm OD DIN 9021 Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with 17-7 PH stainless steel material, ideal for harsh industrial environments
• Exceptional hardness and durability with Rockwell C40 rating, ensuring long service life under high stress
• Precise dimensional fit for M6 screws with 7mm ID and 13.6mm OD, minimizing loosening and vibration issues
• Reliable load distribution across a thickness range of 2.7-4.0 mm, protecting surfaces and enhancing joint integrity
• Compliance with DIN 9021 standards, guaranteeing consistent quality and interchangeability in metric applications
• Environmental and safety assurance through RoHS 3 and REACH compliance, meeting strict regulatory requirements
• Versatile industrial use in machinery, automotive, and construction where corrosion resistance and strength are critical

Professional Applications & Engineering Value

This M6 flat washer made from 17-7 PH stainless steel addresses common engineering challenges in demanding settings. Its high corrosion resistance prevents degradation in moist or chemical-exposed environments, reducing maintenance costs and downtime. The Rockwell C40 hardness ensures the washer maintains shape under heavy loads, preventing deformation that can lead to fastener failure. Designed to DIN 9021 specifications, it provides reliable performance in metric-based assemblies, such as industrial machinery, automotive systems, and structural frameworks, where precise thread engagement and surface protection are vital. The flat washer design evenly distributes pressure, safeguarding components from damage and extending the lifespan of critical connections.

Specification Summary & Compliance

This washer adheres to DIN 9021 for dimensional accuracy, with an inner diameter of 7 mm, outer diameter of 13.6 mm, and thickness varying from 2.7 to 4.0 mm, ensuring precise fit for M6 screw sizes. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming it is free from hazardous substances and suitable for global industrial applications requiring environmental safety and durability.