S-95318A118 1.442" ID x 2.76" OD ASME B18.2.6; ASTM F959 Type A325 Tension-Indicating Structural Washers

Key Features & Benefits at a Glance

• Reliable tension verification through bright orange dye that provides clear visual confirmation of proper bolt preload
• Exceptional 97,000 lbs load capacity ensures structural integrity in demanding heavy-duty applications
• Superior corrosion resistance with galvanized steel construction for extended service life in harsh environments
• Precise dimensional control with 1.442" ID and 2.76" OD for perfect fit with 1 3/8" fasteners
• Consistent performance guaranteed by Rockwell C37 hardness rating and strict compliance with industry standards
• Regulatory compliance assurance with RoHS 3 and REACH compliance for global industrial applications
• Optimized thickness range (0.158-0.270") accommodates varying tension requirements while maintaining structural stability

Professional Applications & Engineering Value

This galvanized steel tension indicating washer addresses critical safety concerns in structural bolting applications by providing immediate visual confirmation of proper installation. The orange tension-indicating dye eliminates guesswork in critical connections, preventing under-torquing that can lead to joint failure or over-torquing that may damage components. Engineered for heavy-duty industrial applications including bridge construction, structural steel frameworks, and heavy machinery assembly, this washer's 97,000 lbs capacity ensures reliable performance in high-stress environments. The galvanized surface treatment provides essential corrosion protection, extending service life in outdoor or corrosive industrial settings while maintaining consistent tension indication accuracy throughout the product lifecycle.

Specification Summary & Compliance

This tension indicating washer features precise dimensional specifications with 1.442" inner diameter, 2.76" outer diameter, and thickness ranging from 0.158" to 0.270" to accommodate 1 3/8" screw sizes. Manufactured to exacting standards including ASME B18.2.6 and ASTM F959 Type A325 specifications, the washer maintains consistent Rockwell C37 hardness for reliable performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and safety in industrial applications worldwide.