S-91166A330 25 mm ID x 44 mm OD DIN 125; ISO 7089 General Purpose Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc plating for extended service life in demanding environments
• Exceptional load distribution thanks to the 44mm outer diameter, minimizing surface pressure and material fatigue
• Precise fit for M24 screws with a 25mm inner diameter, ensuring secure and stable fastening assemblies
• High mechanical strength and deformation resistance provided by Rockwell B75 hardness
• Guaranteed dimensional consistency and interchangeability through compliance with DIN 125 and ISO 7089 standards
• Reliable performance in heavy-duty applications with a robust thickness range of 3.7-4.3mm
• Safe for regulated industries with full compliance to RoHS 3 and REACH environmental directives

Professional Applications & Engineering Value

This M24 zinc plated steel flat washer is engineered to solve critical challenges in industrial applications where vibration, heavy loads, and environmental exposure are common. The zinc plating provides a sacrificial layer that actively fights corrosion, significantly increasing the lifespan of the assembly and reducing maintenance costs. Its design, conforming to DIN 125 and ISO 7089, ensures a perfect fit and optimal load distribution, which prevents bolt loosening and protects sensitive surfaces from damage. This makes it an indispensable component in machinery, structural steelwork, and heavy equipment, delivering reliable performance that engineers and procurement specialists can trust.

Specification Summary & Compliance

This flat washer features a 25mm Inner Diameter (ID), 44mm Outer Diameter (OD), and a thickness of 3.7-4.3 mm, manufactured to the precise dimensional tolerances of DIN 125 and ISO 7089 standards. The material is zinc plated steel with a hardness of Rockwell B75. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations.