S-91455A450 10.5 mm ID x 20 mm OD DIN 125; ISO 7089 General Purpose Washers

Key Features & Benefits at a Glance

• Superior corrosion protection with zinc-flake coating that withstands harsh industrial environments and extends service life
• Exceptional load distribution thanks to precise 20mm outer diameter and flat design, preventing surface damage and loosening
• Reliable hardness performance with Rockwell B91 rating ensuring consistent durability under vibration and stress
• Guaranteed dimensional accuracy per DIN 125 and ISO 7089 standards for perfect fit with M10 screws and simplified assembly
• Enhanced environmental compliance meeting RoHS 3 and REACH regulations for safe use in regulated industries
• Optimized thickness range (1.8-2.2mm) providing ideal compression and spacing in varied applications
• Broad industrial compatibility with 10.5mm inner diameter ensuring secure fastening across machinery, automotive, and construction sectors

Professional Applications & Engineering Value

This M10 flat washer delivers critical engineering solutions where corrosion resistance and mechanical reliability are paramount. The zinc-flake coated steel construction effectively combats rust and chemical exposure in outdoor equipment, marine hardware, and automotive assemblies, reducing maintenance frequency. Its compliance with DIN 125 and ISO 7089 ensures precise dimensional tolerances for seamless integration with M10 screws, eliminating misalignment issues in high-vibration settings like heavy machinery and structural frameworks. By distributing clamp load evenly, it prevents joint failure and surface indentation, making it indispensable for industrial applications demanding long-term fastening integrity under dynamic loads.

Specification Summary & Compliance

Manufactured to exact DIN 125 and ISO 7089 standards with inner diameter 10.5mm, outer diameter 20mm, and thickness 1.8-2.2mm for consistent metric compatibility. Features Rockwell B91 hardness for mechanical strength and full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe and sustainable usage.