S-90718A170 6.4 mm ID x 12.5 mm OD UL 94 HB Plastic Washers

Key Features & Benefits at a Glance

• Enhanced durability and strength with glass-filled nylon construction, resisting wear in demanding applications
• Superior dimensional stability ensures consistent performance and reliable fit for M6 screws with precise 6.4mm ID and 12.5mm OD
• Excellent chemical resistance protects against corrosion and degradation in harsh industrial environments
• High-temperature tolerance up to 220°F maintains integrity in thermal cycling and heated assemblies
• Electrical insulation properties prevent short circuits, ideal for electronic and electrical applications
• Compliance with UL 94 HB flammability standards reduces fire risks and enhances safety in various settings
• Rockwell M111 hardness offers reliable load distribution and vibration resistance without cracking

Professional Applications & Engineering Value

This M6 metric flat washer made from glass-filled nylon plastic addresses common industrial challenges by combining lightweight design with robust performance. Its white color and UL 94 HB certification make it suitable for applications requiring flame retardancy, such as in electrical enclosures, automotive components, and machinery assemblies. The material's inherent chemical resistance and dimensional stability prevent swelling or deformation under stress, ensuring long-term reliability in environments exposed to oils, solvents, and moisture. Engineers value its ability to provide consistent electrical insulation and distribute loads evenly, reducing the risk of fastener loosening and component damage in high-temperature settings up to 220°F.

Specification Summary & Compliance

This flat washer features precise metric dimensions with an inner diameter of 6.4mm and outer diameter of 12.5mm, designed for M6 screw sizes. It meets UL 94 HB specifications for flammability and is manufactured to ensure consistent performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting safe and environmentally responsible industrial use.