S-91455A190 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 that protects against rust in demanding industrial environments
• Exceptional load distribution thanks to 44mm outer diameter that prevents surface damage and fastener loosening
• Precise M24 screw compatibility with 25mm inner diameter ensuring perfect fit and secure fastening
• Enhanced durability from Rockwell B91 hardness that maintains structural integrity under heavy loads
• Reliable thickness consistency between 3.7-4.3mm for uniform pressure distribution across applications
• International standard compliance meeting both DIN 125 and ISO 7089 specifications for global project compatibility
• Environmental regulation adherence with RoHS 3 and REACH compliance for safe, sustainable industrial use

Professional Applications & Engineering Value

This zinc plated steel flat washer delivers critical engineering solutions for heavy-duty industrial applications where vibration resistance and corrosion protection are paramount. The M24 metric sizing with precise 25mm ID ensures perfect alignment with corresponding fasteners, eliminating misalignment issues that compromise structural integrity. The 44mm OD provides substantial surface coverage, effectively distributing clamping forces to prevent material deformation and joint failure. Manufactured to DIN 125 and ISO 7089 standards, this washer maintains dimensional accuracy across production batches, offering reliable performance in construction machinery, industrial equipment assembly, and structural steel connections where consistent thickness (3.7-4.3mm) and Rockwell B91 hardness withstand extreme mechanical stresses.

Specification Summary & Compliance

This metric flat washer features precise dimensional specifications including 25mm inner diameter, 44mm outer diameter, and 3.7-4.3mm thickness range. Manufactured in compliance with DIN 125 and ISO 7089 international standards, ensuring dimensional accuracy and interchangeability. The washer meets RoHS 3 (2015/863/EU) compliance for hazardous substance restrictions and REACH (EC 1907/2006) compliance for chemical safety, with material hardness rated at Rockwell B91 for consistent mechanical performance across industrial applications.