S-95318A115 1.045" ID x 2.01" OD ASME B18.2.6; ASTM F959 Type A325 Tension-Indicating Structural Washers

Key Features & Benefits at a Glance

• 51,000 lbs tension indication ensures precise bolt load verification, preventing under/over-tightening in critical structural connections
• Orange tension-indicating dye provides immediate visual confirmation of proper installation, reducing inspection time and human error
• Galvanized steel construction offers superior corrosion resistance for long-term durability in harsh industrial environments
• Rockwell C37 hardness maintains dimensional stability under extreme loads, preventing deformation in heavy-duty applications
• ASME B18.2.6 and ASTM F959 Type A325 compliance guarantees interchangeability and performance reliability in structural bolting assemblies
• Precision inch dimensions (1.045" ID, 2.01" OD) ensure perfect fit for 1" screws, eliminating installation issues and vibration loosening
• RoHS 3 and REACH compliance meets international environmental and safety standards for global industrial applications

Professional Applications & Engineering Value

This tension indicating washer solves critical challenges in structural bolting where precise clamp load verification is essential. The galvanized steel material combined with Rockwell C37 hardness ensures the washer maintains its structural integrity under extreme vibration and load conditions common in bridge construction, heavy machinery, and structural steel frameworks. The orange tension-indicating dye provides immediate visual confirmation that proper preload has been achieved, eliminating guesswork and reducing the risk of joint failure. Engineered specifically for 1" screw applications with precise dimensional tolerances, this washer prevents common issues like bolt loosening and joint relaxation in heavy-duty industrial environments, making it ideal for applications where safety and reliability are paramount.

Specification Summary & Compliance

This tension indicating washer features precise inch system dimensions with 1.045" inner diameter and 2.01" outer diameter, specifically designed for 1" screw applications. Manufactured to exacting ASME B18.2.6 and ASTM F959 Type A325 standards, ensuring consistent performance in structural bolting assemblies. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental and safety requirements for industrial components. With a thickness range of 0.158-0.270" and Rockwell C37 hardness rating, this washer maintains dimensional stability and performance reliability across demanding applications.