S-98689A225 28 mm ID x 50 mm OD DIN 125 General Purpose Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel material, ideal for harsh environments and extending service life
• Exceptional mechanical strength with Rockwell B75 hardness, providing reliable load distribution and resistance to deformation under high stress
• Precise dimensional fit with 28mm ID and 50mm OD, ensuring secure seating for M27 screws and preventing loosening
• Guaranteed interchangeability through DIN 125 standard compliance, facilitating easy sourcing and replacement in European machinery
• Consistent performance with a controlled thickness of 3.7-4.3 mm, offering uniform clamping force and vibration dampening
• Environmental responsibility with full RoHS 3 and REACH compliance, meeting strict regulations for hazardous substances
• Broad industrial suitability as a metric flat washer, designed for heavy-duty applications requiring durability and reliability

Professional Applications & Engineering Value

This M27 flat washer is engineered to address critical challenges in industrial assembly, where corrosion resistance and structural integrity are paramount. Manufactured from 18-8 stainless steel, it effectively combats rust and chemical degradation in demanding environments like marine, chemical processing, and outdoor infrastructure. The metric sizing (28mm ID, 50mm OD) and DIN 125 specification ensure a perfect fit for M27 screws, preventing bolt loosening and distributing load evenly to protect sensitive components from damage. With a Rockwell B75 hardness, it maintains shape under high pressure, reducing maintenance needs and downtime in heavy-duty machinery, construction, and automotive systems. This washer delivers long-term reliability, making it a cost-effective solution for industrial applications requiring sustained performance.

Specification Summary & Compliance

This flat washer adheres to DIN 125 standards, ensuring precise dimensions with an Internal Diameter of 28 mm, External Diameter of 50 mm, and Thickness ranging from 3.7 to 4.3 mm, compatible with M27 screw sizes. It is manufactured from 18-8 Stainless Steel with a hardness of Rockwell B75 for consistent mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from restricted hazardous substances and safe for various industrial uses.