S-90718A180 6.4 mm ID x 12.5 mm OD UL 94 HB Plastic Washers

Key Features & Benefits at a Glance

• Enhanced durability with glass-filled nylon construction providing superior strength and longevity compared to standard plastic washers
• Excellent chemical resistance making them ideal for harsh industrial environments where corrosion is a concern
• Reliable electrical insulation properties for safe use in electrical assemblies and applications
• High-temperature performance maintaining structural integrity up to 220°F (104°C) for demanding thermal conditions
• Precision dimensional accuracy with 6.4mm ID and 12.5mm OD ensuring perfect fit for M6 screw assemblies
• Regulatory compliance assurance with UL 94 HB flammability rating and RoHS 3/REACH environmental standards
• Consistent performance backed by Rockwell M111 hardness rating for reliable load distribution and surface protection

Professional Applications & Engineering Value

These glass-filled nylon flat washers deliver exceptional engineering value in demanding industrial applications where metal washers would be unsuitable. The M6 metric flat washer design provides optimal load distribution while the black nylon plastic composition offers inherent advantages including corrosion resistance, electrical insulation, and reduced weight. Engineered to solve common industrial challenges, these washers prevent galvanic corrosion in mixed-material assemblies and maintain performance in chemical-exposed environments. The glass-filled reinforcement enhances structural integrity, making them suitable for high-temperature applications up to 220°F where thermal stability is critical. Their non-conductive properties make them ideal for electrical equipment, while the precise 6.4mm ID ensures secure fitting on M6 screws without loosening or misalignment issues common in vibration-prone applications.

Specification Summary & Compliance

This metric flat washer features precise dimensional specifications with 6.4mm inner diameter and 12.5mm outer diameter, designed specifically for M6 screw applications. Manufactured from glass-filled nylon plastic with Rockwell M111 hardness rating, the washers meet UL 94 HB flammability standards for safety-critical applications. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures they meet the latest international standards for hazardous substance restrictions and chemical safety protocols.