S-91116A220 22 mm ID x 60 mm OD DIN 9021 Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
• Optimal load distribution across a wide surface area (60mm OD) to prevent joint loosening and surface damage
• Enhanced durability and wear resistance from Rockwell B52 hardness, ensuring long service life under stress
• Precise dimensional accuracy compliant with DIN 9021 standards for reliable fit with M20 screws
• Environmental and safety compliance with RoHS 3 and REACH regulations, safe for various industrial sectors
• Versatile metric sizing (22mm ID, 60mm OD) for seamless integration in global machinery and equipment
• Cost-effective maintenance by reducing fastener failure and extending the lifespan of assembled components

Professional Applications & Engineering Value

This M20 flat washer is engineered to address common industrial challenges such as joint fatigue, corrosion-induced failure, and uneven load bearing. Made from 18-8 stainless steel, it provides excellent resistance to rust and chemicals, making it suitable for outdoor machinery, marine equipment, and chemical processing plants. The DIN 9021 specification ensures precise metric dimensions and consistent performance, while the flat design with a 60mm outer diameter effectively distributes clamping force, preventing surface indentation and bolt loosening in high-vibration applications. Its compliance with RoHS and REACH standards further supports use in regulated industries, offering reliability and peace of mind for engineers and procurement teams.

Specification Summary & Compliance

This flat washer features an inner diameter of 22mm, outer diameter of 60mm, and thickness ranging from 3.4 to 4.6mm, designed for M20 screw sizes. It conforms to DIN 9021 standards for dimensional accuracy and is manufactured from 18-8 stainless steel with a hardness of Rockwell B52. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets environmental and safety requirements for industrial use.