S-95348A113 0.785" ID x 1.478" OD ASME B18.2.6; ASTM F959 Type A490 Tension-Indicating Structural Washers

Key Features & Benefits at a Glance

• 35,000 lbs tension indication ensures reliable bolt preload verification in critical heavy-duty applications
• Vivid orange tension-indicating dye provides clear visual confirmation of proper installation and tension achievement
• Zinc-plated steel construction offers excellent corrosion resistance and durability in demanding industrial environments
• Rockwell C37 hardness rating maintains structural integrity under extreme mechanical stress and vibration
• Precision dimensional specifications (0.785" ID, 1.478" OD) ensure perfect fit for 3/4" screw applications
• Dual industry standard compliance with ASME B18.2.6 and ASTM F959 Type A490 guarantees consistent performance and quality
• Environmental regulation compliance with RoHS 3 and REACH supports sustainable procurement and global market acceptance

Professional Applications & Engineering Value

This tension indicating washer addresses critical safety concerns in structural bolting applications where precise tension control is paramount. The zinc-plated steel construction combined with the orange tension-indicating dye system provides engineers with a reliable method to verify that bolts have achieved their specified preload during installation. In heavy machinery, structural steel connections, and critical infrastructure projects, this 3/4 inch washer prevents under-tightening that could lead to joint failure or over-tightening that might damage components. The 35,000 lbs capacity makes it ideal for high-stress applications in construction, mining equipment, and industrial machinery where bolt tension verification is essential for operational safety and longevity.

Specification Summary & Compliance

This tension indicating washer features precise dimensional specifications with 0.785" inner diameter, 1.478" outer diameter, and thickness ranging from 0.126" to 0.240" to accommodate standard 3/4" screw applications. Manufactured to exacting ASME B18.2.6 and ASTM F959 Type A490 standards, ensuring consistent performance and dimensional accuracy. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, supporting global procurement requirements and sustainable manufacturing practices.