S-93493A329 21 mm ID x 34 mm OD Plastic Washers

Key Features & Benefits at a Glance

• Exceptional thermal resistance - withstands continuous exposure up to 280°F (138°C) for reliable performance in high-temperature environments
• Superior dimensional stability - maintains precise 21mm ID/34mm OD dimensions under varying thermal and load conditions
• Enhanced chemical resistance - fiberglass construction provides excellent protection against corrosive substances and environmental degradation
• Optimized load distribution - 1.4-1.8mm thickness range ensures even pressure distribution for M20 screw applications
• Long-lasting durability - Rockwell M115 hardness rating delivers exceptional wear resistance and extended service life
• Regulatory compliance assurance - meets RoHS 3 and REACH standards for safe use in regulated industrial applications
• Easy identification - light green color provides quick visual recognition in complex assembly environments

Professional Applications & Engineering Value

These M20 metric flat washers with fiberglass construction deliver critical engineering solutions for demanding industrial environments. The high-temperature resistance up to 280°F makes them ideal for automotive, electrical, and manufacturing applications where thermal stability is paramount. The fiberglass material provides exceptional chemical resistance, preventing degradation from oils, solvents, and industrial chemicals while maintaining dimensional stability under varying load conditions. Engineered for M20 screw applications, these washers ensure reliable performance in equipment requiring thermal management and corrosion protection, making them essential components in HVAC systems, electrical enclosures, and industrial machinery where failure is not an option.

Specification Summary & Compliance

Precision-engineered with 21mm internal diameter and 34mm outer diameter for perfect fit with M20 fasteners. The 1.4-1.8mm thickness range ensures optimal performance across various assembly requirements. Manufactured to meet industry standards with Rockwell M115 hardness for consistent quality. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory adherence for global industrial applications.