S-98119A037 0.938" ID x 1.75" OD ASTM F436 Type 1 Structural Washers

Key Features & Benefits at a Glance

• Superior corrosion protection through hot-dipped galvanized steel construction, extending service life in harsh industrial environments
• Exceptional load distribution with precise 0.938" ID and 1.75" OD dimensions, preventing surface damage and joint loosening
• Certified mechanical performance meeting ASTM F436 Type 1 standards for reliable structural integrity in heavy-duty applications
• Optimized hardness rating at Rockwell C38 ensures consistent performance under high tension and vibration conditions
• Environmental compliance assurance with RoHS 3 and REACH regulations for global supply chain compatibility
• Perfect fit compatibility specifically engineered for 7/8" screws, reducing installation time and improving assembly accuracy
• Dimensional stability with controlled thickness variation (0.136-0.177") for uniform pressure distribution across fastened surfaces

Professional Applications & Engineering Value

These ASTM F436 Type 1 flat washers deliver critical engineering solutions where corrosion resistance and structural reliability are paramount. The hot-dipped galvanized steel construction provides a robust barrier against moisture and chemical exposure, making them ideal for outdoor infrastructure, marine equipment, and industrial machinery applications. With their Rockwell C38 hardness and precise dimensional tolerances, these heavy-duty washers effectively distribute clamping forces, prevent bolt embedment, and maintain joint integrity under dynamic loads and vibration. The specific design for 7/8" screws ensures optimal performance in structural steel connections, heavy equipment assembly, and construction projects requiring dependable fastening solutions that withstand environmental challenges while meeting stringent industry standards.

Specification Summary & Compliance

This flat washer features inch system dimensions with 0.938" inner diameter, 1.75" outer diameter, and thickness ranging 0.136-0.177". Manufactured to ASTM F436 Type 1 specifications with Rockwell C38 hardness rating, ensuring consistent mechanical properties and performance. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making it suitable for global industrial applications requiring verified material safety and environmental responsibility.