S-91100A348 6.5 mm ID x 16.7 mm OD DIN 7349-A Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in demanding industrial environments
• Optimized load distribution for Class 8.8 fasteners, preventing surface damage and maintaining joint integrity under high stress
• Precise dimensional fit with 6.5mm ID and 16.7mm OD, ensuring secure M6 screw seating and reducing installation errors
• Enhanced durability with 2.7-3.3mm thickness range, providing consistent performance in vibration-prone applications
• Guaranteed standardization through DIN 7349-A compliance, ensuring interchangeability and reliability across European mechanical systems
• Environmental responsibility with full RoHS 3 and REACH compliance, meeting strict regulatory requirements for hazardous substances
• Versatile industrial application across machinery, automotive, and construction assemblies where metric fastening systems are specified

Professional Applications & Engineering Value

This zinc-plated steel flat washer delivers critical engineering solutions for industrial assembly challenges. The M6 specification combined with Class 8.8 fastener compatibility addresses common issues of bolt loosening and surface marring in high-vibration environments. The DIN 7349-A standardized dimensions ensure perfect fitment with metric components, eliminating compatibility concerns in European equipment manufacturing. The zinc plating provides essential corrosion protection where moisture or chemical exposure would compromise ordinary washers, while the precise 16.7mm OD creates optimal bearing surface to prevent embedding in softer materials. These flat washers are engineered to maintain clamp force integrity in automotive, machinery, and structural applications where reliable fastening is non-negotiable.

Specification Summary & Compliance

Manufactured to DIN 7349-A standard with precise metric dimensions: 6.5mm internal diameter, 16.7mm external diameter, and 2.7-3.3mm thickness range. Specifically engineered for use with M6 Class 8.8 fasteners in industrial applications. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring adherence to the latest European substance restrictions. The zinc-plated steel construction meets German industrial standards for dimensional accuracy and material quality in mechanical fastening systems.