S-95610A116 4.3 mm ID x 12 mm OD DIN 9021 Plastic Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with nylon construction, eliminating rust and galvanic corrosion in demanding environments
• Excellent electrical and thermal insulation properties for enhanced safety in electrical assemblies and temperature-sensitive applications
• Consistent performance across extreme temperatures from -40°F to 220°F, maintaining dimensional stability in harsh conditions
• Optimized load distribution with precise 4.3mm ID and 12mm OD dimensions, preventing surface damage and loosening under M4 screw pressure
• Durable wear resistance thanks to Rockwell R120 hardness, ensuring long service life in high-vibration industrial settings
• Guaranteed dimensional accuracy through strict DIN 9021 compliance, providing reliable fit and function in metric assemblies
• Environmentally responsible manufacturing with full RoHS 3 and REACH compliance, meeting global regulatory standards

Professional Applications & Engineering Value

This M4 nylon flat washer delivers critical engineering solutions where metal fasteners fall short. The off-white nylon plastic construction provides inherent electrical insulation, making it ideal for electrical enclosures, control panels, and electronic devices where conductivity must be avoided. Its temperature resistance from -40°F to 220°F ensures reliable performance in automotive, aerospace, and outdoor equipment exposed to thermal cycling. The DIN 9021 standard guarantees precise dimensional control for consistent load distribution under M4 fasteners, preventing joint failure while the Rockwell R120 hardness resists deformation in high-vibration industrial machinery. These metric system washers effectively solve corrosion, insulation, and weight reduction challenges while maintaining REACH and RoHS 3 compliance for global market acceptance.

Specification Summary & Compliance

Manufactured to DIN 9021 specifications with precise dimensional tolerances: 4.3mm internal diameter, 12mm outer diameter, and 0.9-1.1mm thickness range. The nylon material meets Rockwell R120 hardness standards for consistent mechanical performance. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and workplace safety. Temperature rating certified for operation from -40°F to 220°F, validated for industrial applications requiring thermal stability.