S-90965A250 21 mm ID x 37 mm OD DIN 125; ISO 7089 General Purpose Washers

Key Features & Benefits at a Glance

• Exceptional corrosion resistance in harsh environments thanks to 316 stainless steel construction, reducing maintenance costs and extending service life.
• Reliable load distribution and surface protection with precise metric dimensions (21mm ID, 37mm OD) for M20 fasteners, preventing loosening and component damage.
• Guaranteed dimensional accuracy and interchangeability through compliance with DIN 125 and ISO 7089 standards, ensuring a perfect fit every time.
• Superior chemical resistance for demanding industrial applications, maintaining integrity when exposed to various chemicals and chlorides.
• Safe for regulated industries with full compliance to RoHS 3 and REACH environmental directives, meeting the highest safety and sustainability standards.
• Consistent performance and durability with a controlled thickness of 2.7-3.3 mm, providing a stable and long-lasting bearing surface.

Professional Applications & Engineering Value

Engineered for demanding scenarios, this M20 flat washer made from 316 stainless steel provides a critical defense against corrosion and stress in industrial assemblies. Its robust material grade offers superior performance in chemical processing, marine, and food industry applications where exposure to corrosive agents is a constant challenge. The precise metric dimensions and adherence to DIN 125 and ISO 7089 standards ensure a perfect fit with M20 fasteners, eliminating issues of misalignment and uneven load distribution. This washer effectively solves common engineering pain points by prolonging assembly life, reducing downtime for replacements, and maintaining clamping force integrity under variable pressures and temperatures.

Specification Summary & Compliance

This flat washer features an Inside Diameter (ID) of 21 mm, Outside Diameter (OD) of 37 mm, and a Thickness ranging from 2.7 to 3.3 mm, designed for an M20 screw size. It is manufactured in accordance with the dimensional and tolerance specifications of DIN 125 and ISO 7089 standards. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for use in environmentally conscious supply chains.