S-90320A380 0.19" ID x 3" OD FM Approved Washers for Foam Insulation

Key Features & Benefits at a Glance

• FM Approved for guaranteed compliance and reliability in commercial building insulation systems
• Corrosion-resistant polypropylene construction ensures long-term durability without rust or degradation in humid environments
• Wide 3" OD design distributes load evenly to prevent insulation compression and maintain thermal efficiency
• Precise 0.19" ID provides secure fit for No. 12, 14, and 15 screws without slippage or misalignment
• 0.260" thickness offers superior structural support and vibration resistance in rigid insulation applications
• RoHS 3 & REACH compliant for environmentally responsible sourcing and safe handling during installation
• 150°F temperature resistance maintains integrity under typical insulation system operating conditions

Professional Applications & Engineering Value

These FM Approved polypropylene washers are specifically engineered to address critical challenges in rigid insulation systems for commercial construction. The white polypropylene material provides inherent corrosion resistance, eliminating metal contamination and galvanic corrosion issues common in insulation applications. The large 3" outer diameter creates an optimal bearing surface that prevents fastener pull-through and insulation board damage during thermal expansion/contraction cycles. With precise compatibility for No. 12, 14, and 15 screws, these washers ensure proper mechanical fastening while the 0.260" thickness delivers necessary compression resistance. The RoHS 3 and REACH compliance makes them suitable for environmentally conscious projects, while the 150°F temperature rating ensures performance stability in most building envelope conditions.

Specification Summary & Compliance

Manufactured to exact dimensional specifications with 3" OD, 0.19" ID, and 0.260" thickness for consistent performance. Designed specifically for use with No. 12, No. 14, and No. 15 screw sizes in rigid insulation applications. Compliant with FM Approval standards for building material safety and performance. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulatory requirements for hazardous substance restrictions. Maximum service temperature rated at 150°F (66°C) for reliable operation in standard insulation environments.