S-95318A127 37.7 mm ID x 70.36 mm OD ASME B18.2.6M; ASTM F959 Tension-Indicating Structural Washers

Key Features & Benefits at a Glance

• Precise tension verification with 475,000 N capacity and orange dye for immediate visual confirmation of proper bolt preload
• Superior corrosion resistance through galvanized steel construction for extended service life in harsh industrial environments
• High-strength performance with Class 8.8 rating and Rockwell C37 hardness to withstand extreme mechanical stresses
• Reliable dimensional accuracy with 37.7mm ID and 70.36mm OD ensuring perfect fit for M36 bolt applications
• Industry-standard compliance meeting ASME B18.2.6M and ASTM F959 specifications for guaranteed quality and safety
• Environmental responsibility with RoHS 3 and REACH compliance for sustainable industrial operations
• Optimized load distribution through 4.800mm-7.500mm thickness range for enhanced joint integrity

Professional Applications & Engineering Value

This M36 tension indicating washer delivers critical engineering value in heavy-duty applications where precise bolt tension control is paramount. The galvanized steel construction provides exceptional corrosion resistance for infrastructure, marine, and industrial equipment exposed to harsh environments. The orange tension-indicating dye offers immediate visual confirmation of proper installation, eliminating guesswork and preventing under or over-torquing that can lead to joint failure. Engineered to Class 8.8 standards with Rockwell C37 hardness, this washer maintains structural integrity under extreme loads in construction, mining, and heavy machinery applications. The metric system compatibility ensures seamless integration with international engineering specifications, while the precise dimensional tolerances guarantee optimal performance in critical bolted connections requiring reliable tension monitoring.

Specification Summary & Compliance

This tension indicating washer features precision dimensions of 37.7mm ID and 70.36mm OD with thickness ranging from 4.800mm to 7.500mm, specifically designed for M36 screw applications. Manufactured to exacting ASME B18.2.6M and ASTM F959 specifications, it delivers consistent performance and dimensional accuracy. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and chemical safety in industrial operations. With a certified tension indication capacity of 475,000 N and Rockwell C37 hardness rating, this washer meets the highest standards for heavy-duty mechanical applications requiring reliable bolt tension control.