S-98119A041 1.188" ID x 2.25" OD ASTM F436 Type 1 Structural Washers

Key Features & Benefits at a Glance

• Exceptional corrosion resistance through hot-dipped galvanized steel construction, ensuring long-term reliability in harsh environments
• Superior load distribution with 2.25" OD and 0.136-0.177" thickness, preventing surface damage and maintaining joint integrity
• Precision fit for 1 1/8" screws with 1.188" ID, ensuring secure fastening and reducing installation errors
• Enhanced durability with Rockwell C38 hardness, providing excellent resistance to deformation under heavy loads
• Industry-standard compliance with ASTM F436 Type 1 specifications, guaranteeing consistent performance in structural applications
• Environmental responsibility through RoHS 3 and REACH compliance, meeting strict international regulatory requirements
• Optimized for heavy-duty applications with inch system measurements, ensuring compatibility with industrial equipment and standards

Professional Applications & Engineering Value

This hot-dipped galvanized steel flat washer delivers critical engineering solutions for structural applications where corrosion resistance and load distribution are paramount. The ASTM F436 Type 1 certification ensures reliable performance in demanding environments such as construction frameworks, heavy machinery assemblies, and outdoor infrastructure projects. The galvanized surface treatment provides a protective zinc coating that significantly extends service life in corrosive conditions, while the precise 1.188" ID and 2.25" OD dimensions ensure optimal load distribution across mating surfaces. With Rockwell C38 hardness, these washers maintain structural integrity under sustained pressure, making them ideal for heavy-duty industrial washers applications where failure is not an option.

Specification Summary & Compliance

This flat washer meets ASTM F436 Type 1 specifications with inch system dimensional accuracy, featuring 1.188" inner diameter, 2.25" outer diameter, and 0.136-0.177" thickness range. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory adherence. Manufactured from hot-dipped galvanized steel with Rockwell C38 hardness, it's engineered for 1 1/8" screw applications in structural and industrial settings where precision and reliability are critical.