S-91100A346 5.4 mm ID x 14.7 mm OD DIN 7349 Oversized Washers

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with zinc-plated steel construction for extended service life in harsh environments
• Superior load distribution with precise 14.7mm OD and 5.4mm ID dimensions to prevent surface damage and fastener loosening
• Reliable performance with Class 8.8 fasteners ensuring compatibility with high-strength bolting applications
• Consistent dimensional accuracy maintained through strict adherence to DIN 7349 manufacturing standards
• Environmental compliance assurance meeting RoHS 3 and REACH regulations for safe industrial use
• Optimized thickness range (1.8-2.2mm) providing ideal balance between spacing requirements and structural stability

Professional Applications & Engineering Value

This M5 zinc-plated steel flat washer delivers critical engineering solutions where corrosion resistance and load distribution are paramount. The zinc-plated steel construction provides essential protection against oxidation in industrial environments, while the DIN 7349 specification ensures precise dimensional control for consistent performance. Engineered specifically for Class 8.8 fastener systems, this metric flat washer prevents joint relaxation and surface damage in heavy machinery, automotive assemblies, and structural steel applications. The carefully calibrated inner and outer diameters (5.4mm ID, 14.7mm OD) create an optimal bearing surface, distributing clamping forces evenly to maintain bolt preload integrity under dynamic loads and vibration.

Specification Summary & Compliance

Manufactured to DIN 7349 standards with precise dimensional tolerances, this flat washer features 5.4mm inner diameter, 14.7mm outer diameter, and 1.8-2.2mm thickness range. Designed for compatibility with M5 screw size and Class 8.8 fastener strength grade. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures safe usage across industrial sectors.