S-91116A450 22 mm ID x 60 mm OD DIN 9021 Oversized Washers

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with Black-Oxide 18-8 Stainless Steel, ideal for harsh environments and extending service life.
• High durability and load distribution thanks to Rockwell B68 hardness, preventing surface damage and maintaining joint integrity.
• Precise fit for M20 screws with 22mm ID and 60mm OD, ensuring secure fastening and reducing installation errors.
• Consistent thickness (3.4-4.6mm) provides reliable spacing and vibration resistance in demanding applications.
• Compliance with DIN 9021 standard guarantees dimensional accuracy and interchangeability in metric systems.
• Environmental regulatory adherence with RoHS 3 and REACH compliance, supporting sustainable and safe industrial use.
• Versatile for heavy-duty applications due to robust material and design, suitable for machinery, construction, and automotive sectors.

Professional Applications & Engineering Value

This M20 flat washer is engineered to address critical challenges in industrial settings, such as corrosion, vibration loosening, and high-stress loads. Made from Black-Oxide 18-8 Stainless Steel, it offers superior protection against rust and chemical exposure, making it ideal for outdoor, marine, or chemical processing equipment. The DIN 9021 standard ensures precise dimensions and a flat surface, which helps distribute loads evenly and prevent bolt head embedding, reducing maintenance needs. With a Rockwell B68 hardness, it maintains structural integrity under repeated stress, while the metric sizing (22mm ID, 60mm OD) ensures compatibility with M20 screws in assemblies requiring reliable, long-term fastening solutions. This washer is a cost-effective choice for engineers seeking durability and compliance in industrial washers for heavy machinery, structural frameworks, and automotive systems.

Specification Summary & Compliance

This flat washer adheres to DIN 9021 standards for dimensional accuracy, with an inner diameter of 22mm, outer diameter of 60mm, and thickness ranging from 3.4 to 4.6mm. It is manufactured from Black-Oxide 18-8 Stainless Steel and meets Rockwell B68 hardness for consistent performance. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring it is free from hazardous substances and suitable for global industrial applications.