S-95348A125 31.4 mm ID x 58.42 mm OD ASME B18.2.6M; ASTM F959 Tension-Indicating Structural Washers
Tension-Indicating Structural Washers
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Basic Information
Dimension Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
Special Type Parameters
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Key Features & Benefits at a Glance
- Visual tension confirmation with orange dye provides immediate verification of proper bolt preload, reducing installation errors
- Exceptional load capacity of 408,000 N ensures reliable performance in high-stress industrial applications
- Class 10.9 high-strength material delivers superior mechanical properties and fatigue resistance
- Zinc-plated steel construction offers excellent corrosion protection for extended service life
- Precision dimensional control with 31.4mm ID and 58.42mm OD ensures perfect fit for M30 bolts
- Variable thickness range (4-7mm) accommodates different assembly requirements and gap conditions
- Rockwell C37 hardness maintains structural integrity under heavy loading conditions
Professional Applications & Engineering Value
These Class 10.9 tension indicating washers solve critical bolt tensioning challenges in heavy machinery, structural steel connections, and industrial equipment assembly. The zinc-plated steel construction combined with the orange tension-indicating dye provides engineers with both corrosion resistance and visual verification of proper installation. The M30 metric sizing with precise 31.4mm ID and 58.42mm OD ensures perfect compatibility with standard bolt systems, while the 4-7mm thickness range accommodates various joint configurations. This tension indicating washer technology eliminates guesswork in critical bolted connections, preventing both under-tightening (which can lead to joint failure) and over-tightening (which can damage components).
Specification Summary & Compliance
Manufactured to exacting ASME B18.2.6M and ASTM F959 specifications, these washers maintain dimensional precision and performance consistency. The tension indication system reliably signals achievement of the specified 408,000 N load capacity. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safe use across global industrial markets. The Rockwell C37 hardness and Class 10.9 material grade guarantee mechanical properties suitable for the most demanding applications.
