S-90320A420 0.19" ID x 2" OD Washers for Foam Insulation

Key Features & Benefits at a Glance

• Superior thermal insulation with integrated seals and prongs to prevent heat transfer and air leakage in rigid insulation systems
• Excellent chemical resistance due to black polypropylene construction, ensuring long-term durability in harsh environments
• Precise dimensional fit with 0.19" ID specifically designed for No. 10 screws, providing secure fastening without slippage
• Enhanced load distribution from 2" OD and 0.220" thickness, reducing stress on insulation materials
• Reliable high-temperature performance maintaining integrity up to 150°F for consistent thermal protection
• Environmental compliance assurance with REACH SVHC compliance, meeting strict European chemical safety standards
• Quick installation advantage through prong design that securely positions washers during assembly

Professional Applications & Engineering Value

These polypropylene plastic washers deliver critical engineering solutions for rigid insulation systems in commercial and industrial construction. The combination of insulating seals and retention prongs addresses common installation challenges by creating reliable thermal breaks while preventing washer displacement during vibration or thermal cycling. The black polypropylene material provides inherent resistance to moisture, chemicals, and UV degradation, ensuring long-term performance in demanding environments. With a maximum temperature rating of 150°F, these plastic washers maintain dimensional stability and sealing integrity through typical building temperature fluctuations. The precise 0.19" ID ensures perfect compatibility with No. 10 screws, while the generous 2" OD distributes clamping force effectively across insulation surfaces without compression damage.

Specification Summary & Compliance

This plastic washer features precise inch-dimension specifications: 2" OD × 0.19" ID × 0.220" thickness, engineered for No. 10 screw size applications. Manufactured from polypropylene plastic in black color with integrated insulating seals and positioning prongs. The product maintains performance integrity up to 150°F maximum temperature and demonstrates full compliance with REACH (EC 1907/2006) regulations regarding SVHC substances (as of 06/10/2022, 224 substances), ensuring environmental responsibility and workplace safety standards.