S-98594A313 7.4 mm ID x 16 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
- Excellent corrosion resistance for reliable performance in humid or chemical environments without rusting or degradation
- Electrical insulation properties prevent current leakage and short circuits in electrical assemblies
- Consistent load distribution with precise 7.4mm ID and 16mm OD dimensions protects M7 fastener assemblies from surface damage
- Maintains structural integrity with Rockwell R85 hardness rating, resisting deformation under mechanical stress
- Thermal stability up to 150°F (65°C) ensures reliable performance in moderate temperature applications
- Lightweight design reduces overall assembly weight while providing durable fastening support
- Regulatory compliance with RoHS 3 and REACH standards meets international environmental and safety requirements
Professional Applications & Engineering Value
These polypropylene flat washers deliver exceptional engineering value across multiple industrial sectors. The off-white polypropylene plastic construction provides inherent resistance to moisture, chemicals, and electrical conductivity, making them ideal for electrical enclosures, food processing equipment, and outdoor applications where metal washers would corrode. The metric M7 sizing (7.4mm ID, 16mm OD) ensures precise fitment with standard fasteners, while the controlled 1.4-1.7mm thickness maintains consistent spacing and pressure distribution. These plastic washers effectively prevent galvanic corrosion between dissimilar metals, extend equipment lifespan, and reduce maintenance costs in demanding industrial environments.
Specification Summary & Compliance
Manufactured to precise metric dimensions with 7.4mm inner diameter, 16mm outer diameter, and 1.4-1.7mm thickness range for M7 screw applications. Constructed from polypropylene plastic with Rockwell R85 hardness rating and maximum temperature resistance of 150°F. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and restricted substance compliance for industrial use.
