S-96505A112 4 mm ID x 8 mm OD DIN 1440, ISO 8738 Oversized Washers

Key Features & Benefits at a Glance

• Superior Load Distribution with 8mm outer diameter to prevent surface damage and extend assembly lifespan
• Precision M4 Compatibility featuring 4mm inner diameter for perfect screw fit and vibration resistance
• Enhanced Durability through Rockwell B76 hardened steel construction
• Consistent Performance maintained by controlled 0.7-0.9mm thickness tolerance
• International Compliance with DIN 1440 and ISO 8738 standards for global project compatibility
• Environmental Safety through RoHS 3 and REACH compliance for restricted substance-free operations
• Corrosion Resistance from quality steel material suitable for industrial environments

Professional Applications & Engineering Value

These M4 flat washers deliver critical engineering solutions for industrial applications where vibration resistance and load distribution are paramount. Manufactured from hardened steel with Rockwell B76 hardness, they prevent fastener loosening and surface deformation in machinery, automotive assemblies, and electrical enclosures. The precision metric dimensions (4mm ID × 8mm OD) ensure perfect alignment with M4 screws, while the controlled thickness maintains consistent clamping force. Meeting DIN 1440 and ISO 8738 standards guarantees interchangeability and reliability in multinational projects, making these flat washers essential components for maintenance engineers and OEM manufacturers seeking to reduce equipment downtime and improve assembly integrity.

Specification Summary & Compliance

This metric flat washer features 4mm inner diameter, 8mm outer diameter, and 0.7-0.9mm thickness range with Rockwell B76 hardness. Manufactured to DIN 1440 and ISO 8738 specifications for dimensional accuracy and performance consistency. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in industrial applications worldwide.