S-98687A403 10.5 mm ID x 18 mm OD DIN 433 General Purpose Washers

Key Features & Benefits at a Glance

• Enhanced corrosion resistance through galvanized steel construction, extending service life in humid or outdoor environments
• Superior load distribution with precise 10.5mm ID and 18mm OD dimensions, preventing surface damage and fastener loosening
• Consistent mechanical performance guaranteed by Rockwell B76 hardness for reliable, repeatable clamping force
• Guaranteed dimensional accuracy through DIN 433 standard compliance, ensuring perfect fit with M10 screws
• Optimized thickness range (1.4-1.8mm) provides ideal balance between flexibility and structural support
• Full regulatory compliance with RoHS 3 and REACH standards for safe use in global industrial supply chains
• Reduced maintenance requirements due to zinc coating's protective barrier against rust and chemical exposure

Professional Applications & Engineering Value

These M10 metric flat washers deliver critical engineering solutions where vibration resistance and corrosion protection are paramount. The galvanized steel construction with zinc coating creates a sacrificial layer that actively prevents rust formation in demanding environments like marine equipment, automotive assemblies, and outdoor structures. Manufactured to DIN 433 standards, these washers maintain precise dimensional tolerances that eliminate play between M10 fasteners and mating surfaces, effectively distributing clamp load across wider areas to prevent material deformation. The Rockwell B76 hardness ensures the washers maintain their shape under sustained pressure, making them ideal for machinery that experiences constant vibration or thermal cycling. Their standardized dimensions allow for seamless integration into existing metric hardware systems while the environmental compliance ensures they meet the strictest international manufacturing requirements.

Specification Summary & Compliance

This flat washer features precise metric dimensions with 10.5mm inner diameter, 18mm outer diameter, and 1.4-1.8mm thickness range. Manufactured according to DIN 433 specifications for dimensional accuracy and performance consistency. The galvanized steel material provides Rockwell B76 hardness for mechanical reliability. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, including the latest SVHC updates, ensures environmental safety and global market accessibility for industrial applications.