S-98363A117 22 mm ID x 72 mm OD DIN 440-R Oversized Washers

Key Features & Benefits at a Glance

• Enhanced Load Distribution with a large 72mm outer diameter, reducing surface pressure and preventing material damage in demanding applications.
• Superior Durability from high-grade steel construction and a Rockwell B50 hardness rating, ensuring long-term performance under stress.
• Precise Fit for M20 Screws with a 22mm inner diameter, guaranteeing secure fastening and alignment in metric assemblies.
• Robust Construction with a 5.0-7.0mm thickness range, providing excellent vibration resistance and mechanical stability.
• Guaranteed Compliance with the DIN 440-R standard, ensuring dimensional accuracy and interchangeability in European engineering projects.
• Environmentally Safe design, fully compliant with RoHS 3 and REACH regulations for use in regulated industries.
• Versatile Industrial Use as a reliable, heavy-duty flat washer suitable for machinery, construction, and automotive applications.

Professional Applications & Engineering Value

This M20 flat washer is engineered to solve critical fastening challenges in industrial applications. Manufactured from high-strength steel and hardened to Rockwell B50, it resists deformation under heavy loads and repetitive stress. The DIN 440-R specification ensures precise metric dimensions (22mm ID, 72mm OD) for perfect compatibility with M20 bolts, preventing loosening in vibrating environments. Its substantial 5.0-7.0mm thickness provides a sturdy bearing surface, distributing clamp load effectively to protect softer materials and extend assembly life. Ideal for heavy-duty machinery, structural steelwork, and automotive systems, this washer delivers reliable performance where failure is not an option.

Specification Summary & Compliance

This flat washer conforms to DIN 440-R standards, with precise metric dimensions: 22mm Inner Diameter, 72mm Outer Diameter, and a thickness of 5.0-7.0mm. It is manufactured from steel with a hardness of Rockwell B50. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety requirements for industrial use.