S-95348A115 1.045" ID x 2.01" OD ASME B18.2.6; ASTM F959 Type A490 Tension-Indicating Structural Washers

Tension-Indicating Structural Washers

1257FA00031 Tension-Indicating Structural Washers
1257FA00031 Tension-Indicating Structural Washers

Image may differ from product. See technical specification for details.

Part No.
Part No. 1257FA00031
Equivalent to mcmaster :
95348A115

Basic Information

System of Measurement Inch
Washer Type Tension Indicating
Specifications Met ASME B18.2.6; ASTM F959 Type A490
Features Orange Tension-Indicating Dye

Dimension Parameters

ID 1.045"
OD 2.01"
Thickness 0.158-0.270"

Material & Strength Parameters

Material Zinc-Plated Steel
Hardness Rockwell C37

Installation & Application Parameters

For Screw Size 1"

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (06/14/2023, 235 SVHC) Compliant

Special Type Parameters

Tension Indicated 64,000 lbs.
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
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Key Features & Benefits at a Glance

  • Reliable tension verification through orange dye that visually confirms proper installation and load distribution
  • Exceptional load-bearing capacity withstands up to 64,000 lbs tension for heavy-duty structural applications
  • Superior corrosion resistance with zinc-plated steel construction ensuring long-term durability in harsh environments
  • Precision engineering with Rockwell C37 hardness providing consistent performance under extreme stress conditions
  • Industry-standard compliance meeting ASME B18.2.6 and ASTM F959 Type A490 specifications for guaranteed reliability
  • Easy identification and inspection with bright orange tension-indicating coating for quick visual confirmation
  • Environmental responsibility with full RoHS 3 and REACH compliance for sustainable industrial operations

Professional Applications & Engineering Value

This tension indicating washer delivers critical engineering value in structural applications where bolt tension verification is essential. The zinc-plated steel construction provides superior corrosion protection while maintaining the necessary Rockwell C37 hardness for consistent performance under load. The innovative orange tension-indicating dye system eliminates guesswork in critical connections, ensuring proper installation in construction and structural applications. Engineered to withstand extreme forces up to 64,000 lbs, this 1 inch washer prevents joint failure in heavy machinery, bridge construction, and industrial equipment where safety and reliability are paramount. The precise dimensional control ensures perfect fit for 1" screw size applications, reducing installation time and maintenance costs.

Specification Summary & Compliance

This tension indicating washer features precise dimensional specifications with ID: 1.045", OD: 2.01", and thickness range of 0.158-0.270" for optimal performance. Manufactured to exacting ASME B18.2.6 and ASTM F959 Type A490 standards, ensuring dimensional accuracy and mechanical properties. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental and safety requirements for industrial components. With certified 64,000 lbs tension capacity and Rockwell C37 hardness, this washer delivers consistent performance in the most demanding structural applications.

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