S-95318A119 1.57" ID x 3.01" OD ASME B18.2.6; ASTM F959 Type A325 Tension-Indicating Structural Washers

Key Features & Benefits at a Glance

• Precise installation verification through orange tension-indicating dye that provides clear visual confirmation of proper bolt tensioning
• Exceptional load-bearing capacity with 118,000 lbs tension rating for critical structural applications requiring maximum reliability
• Superior corrosion resistance thanks to galvanized steel construction that withstands harsh environmental conditions
• Enhanced durability from Rockwell C37 hardness rating, ensuring long-term performance in high-stress industrial environments
• Industry-standard compliance with ASME B18.2.6 and ASTM F959 Type A325 specifications for guaranteed quality and interoperability
• Environmental responsibility through RoHS 3 and REACH compliance, meeting strict international regulatory standards
• Optimized dimensional design with 1.57" ID and 3.01" OD for perfect fit with 1 1/2" screw sizes in structural assemblies

Professional Applications & Engineering Value

This tension indicating washer delivers critical engineering value in structural applications where bolt tension verification is essential for safety and performance. The galvanized steel construction provides superior corrosion protection in demanding environments such as bridge construction, heavy machinery assembly, and structural steel frameworks. The innovative orange tension-indicating dye eliminates guesswork during installation, ensuring proper preload is achieved and maintained. With its 118,000 lbs capacity and Rockwell C37 hardness, this washer addresses the critical need for reliable fastening solutions in high-stress applications where failure is not an option. The combination of visual verification and robust material properties makes it ideal for critical joints in construction, infrastructure, and industrial equipment where structural integrity is paramount.

Specification Summary & Compliance

This tension indicating washer features precise dimensional specifications with 1.57" inner diameter, 3.01" outer diameter, and thickness ranging from 0.158" to 0.270" for optimal performance with 1 1/2" screw sizes. Manufactured to exacting ASME B18.2.6 and ASTM F959 Type A325 standards, ensuring dimensional accuracy and mechanical properties meet industry requirements. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental safety and regulatory adherence for international markets. The combination of standardized specifications and comprehensive compliance makes this washer suitable for global industrial applications requiring certified components.