S-91133A152 0.343" ID Square Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with galvanized steel construction, ensuring long-term reliability in harsh industrial environments
• Exceptional load distribution thanks to the 2" square design, preventing surface damage and maintaining joint integrity
• Precise fit for 5/16" screws with 0.343" inner diameter, reducing installation errors and improving assembly efficiency
• Enhanced durability from Rockwell B40 hardness, providing consistent performance under high-stress conditions
• Compliance with global standards including RoHS 3 and REACH, ensuring safe use in regulated industries
• Optimized thickness range (0.054-0.070") for versatile application across different clamping requirements
• Standard inch measurements for seamless integration with existing North American equipment and components

Professional Applications & Engineering Value

This galvanized steel square washer delivers critical engineering solutions where standard washers fail. The zinc coating provides corrosion resistance for outdoor construction, agricultural equipment, and marine applications, while the square shape prevents rotation during bolt tightening - a common issue in vibrating machinery. With Rockwell B40 hardness, it maintains dimensional stability under heavy loads, making it ideal for structural steel connections, industrial machinery bases, and transportation equipment. The precise 0.343" ID ensures perfect alignment with 5/16" screws, eliminating play that could compromise joint security in critical assemblies.

Specification Summary & Compliance

Manufactured to standard inch system dimensions with 2" width, 0.343" inner diameter, and thickness ranging 0.054-0.070". The galvanized steel construction meets industrial hardness requirements at Rockwell B40. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, containing no substances of very high concern above threshold limits. Designed specifically for use with 5/16" screw size applications in construction and industrial hardware.