S-95211A230 20 mm ID x 56 mm OD DIN 9021 Oversized Washers

Key Features & Benefits at a Glance

• Exceptional corrosion resistance from Passivated 316 Stainless Steel, ideal for harsh industrial environments and extended service life
• Superior load distribution with a 56mm outer diameter, reducing surface pressure and preventing material damage
• Precise fit for M18 screws with a 20mm inner diameter, ensuring secure fastening and vibration resistance
• Enhanced durability with Rockwell B75 hardness, maintaining shape and performance under heavy loads
• Guaranteed dimensional accuracy per DIN 9021 standard, ensuring compatibility and reliable assembly
• Environmental compliance with RoHS 3 and REACH, safe for regulated industries and sustainable operations
• Consistent thickness (3.4-4.6 mm) providing uniform clamping force and stability in demanding applications

Professional Applications & Engineering Value

This M18 flat washer is engineered to solve critical challenges in industrial settings where corrosion, high stress, and regulatory compliance are paramount. The Passivated 316 Stainless Steel construction offers superior resistance to chemicals, moisture, and extreme temperatures, making it ideal for marine, chemical processing, and food industry applications. Its DIN 9021 compliance ensures precise dimensions and reliable performance in heavy-duty assemblies, preventing loosening under vibration and distributing loads effectively to protect connected components. By integrating this metric flat washer into your designs, you enhance longevity, reduce maintenance costs, and meet stringent environmental standards without compromising on mechanical integrity.

Specification Summary & Compliance

This washer conforms to DIN 9021 specifications with an inner diameter of 20mm, outer diameter of 56mm, and thickness ranging from 3.4 to 4.6mm. It is manufactured from Passivated 316 Stainless Steel with a hardness of Rockwell B75, ensuring consistent quality and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting safe and environmentally responsible usage in various industrial sectors.