S-95649A110 8.4 mm ID x 18 mm OD Plastic Washers
Plastic Washers
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Basic Information
Dimension Parameters
Material & Strength Parameters
Temperature & Environment Parameters
Installation & Application Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Exceptional chemical resistance for reliable performance in corrosive or chemical-exposed environments
- Low friction coefficient reduces wear on mating surfaces and extends component lifespan
- Lightweight non-metallic construction eliminates galvanic corrosion risks in multi-material assemblies
- Temperature tolerance up to 180°F maintains dimensional stability in moderate heat applications
- Precision metric sizing (8.4mm ID/18mm OD) ensures perfect fit with M8 fasteners for secure load distribution
- UHMW polyethylene material provides superior impact strength and abrasion resistance versus standard plastics
- Regulatory compliance ready with RoHS 3 and REACH certification for global industrial deployment
Professional Applications & Engineering Value
These UHMW plastic flat washers deliver critical engineering solutions where metal fasteners fail. The ultra-high molecular weight polyethylene construction inherently resists chemicals, moisture, and corrosion that degrade metallic washers in food processing, marine, or chemical handling equipment. Their self-lubricating properties prevent galling on stainless steel M8 screws while providing electrical insulation in sensitive assemblies. The metric dimensions (8.4x18mm) maintain precise Class 2A thread engagement, distributing clamp loads effectively in automotive, conveyor, and packaging machinery where vibration resistance and non-contaminating properties are paramount. The off-white color provides visual distinction in multi-component assemblies.
Specification Summary & Compliance
Manufactured to standard metric flat washer dimensions with 8.4mm inner diameter and 18mm outer diameter, maintaining 1.9-2.1mm thickness tolerance. Compatible with M8 screw sizes per ISO metric threading standards. Material certification includes full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring unrestricted use in industrial applications worldwide. UHMW material properties provide consistent performance across the specified temperature range up to 180°F.
