S-90718A110 3.2 mm ID x 7 mm OD UL 94 HB Plastic Washers

Key Features & Benefits at a Glance

• Enhanced durability and strength from glass-filled nylon construction, resisting deformation under load in demanding applications
• Reliable electrical insulation properties for safe use in electrical assemblies, preventing short circuits and current leakage
• Superior heat resistance up to 220°F maintaining structural integrity and performance in elevated temperature environments
• Excellent corrosion and chemical resistance ensuring long service life without rust or degradation in harsh conditions
• Precision M3 metric sizing (3.2mm ID, 7mm OD) for accurate fit and consistent load distribution with standard M3 screws
• High Rockwell M111 hardness providing excellent wear resistance and reduced risk of damage during installation
• Full regulatory compliance with UL 94 HB flammability standards, RoHS 3, and REACH for global market acceptance

Professional Applications & Engineering Value

Engineered for industrial applications requiring reliable performance, these M3 metric flat washers made from glass-filled nylon plastic solve critical engineering challenges. The material composition delivers exceptional electrical insulation properties, making them ideal for electrical assemblies where conductivity must be prevented. Their white color provides visual contrast for quality control inspections. The 220°F maximum temperature rating ensures stability in environments with thermal cycling, while the inherent corrosion resistance eliminates concerns about galvanic corrosion when used with dissimilar metals. These plastic washers are particularly valuable in mechanical assemblies where weight reduction, chemical resistance, and consistent performance are paramount requirements.

Specification Summary & Compliance

Precision manufactured to metric system standards with 3.2mm inner diameter and 7mm outer diameter dimensions specifically designed for M3 screw sizes. The washers meet UL 94 HB flammability specifications for material safety and are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, containing no restricted substances. Manufacturing follows strict quality controls to ensure dimensional accuracy and consistent Rockwell M111 hardness throughout production batches.