S-91072A394 ASTM A108 Inch-to-Inch Female Hex Thread Adapters
Inch-to-Inch Female Hex Thread Adapters
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Basic Information
Material & Strength Parameters
End A Thread Parameters
End B Thread Parameters
Hex Parameters
Drive Parameters
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Key Features & Benefits at a Glance
- Enhanced corrosion resistance with black-oxide steel coating for extended service life in harsh industrial environments
- Superior load-bearing capacity with 75,000 psi tensile strength to withstand high-stress applications without failure
- Precision thread alignment with Class 2B thread fit ensuring secure, vibration-resistant connections between 2-56 and 4-40 components
- Optimized torque transmission through 3/16" external hex drive design for easy installation with standard tools
- Consistent mechanical performance backed by Rockwell B65 hardness for maintained dimensional stability under repeated use
- Regulatory compliance assurance with RoHS 3 certification meeting global environmental standards for industrial components
- Reliable material quality manufactured from ASTM A108 steel for guaranteed chemical composition and mechanical properties
Professional Applications & Engineering Value
This female hex thread adapter solves critical interconnection challenges in precision assemblies where different thread sizes must interface reliably. The black-oxide steel construction provides essential corrosion protection for equipment exposed to moisture, chemicals, or outdoor conditions, while the external hex drive design enables quick installation in confined spaces common in electronic enclosures, instrumentation panels, and aerospace components. Engineers specify this 2-56 to 4-40 adapter for maintaining structural integrity in vibration-prone applications, as the Class 2B thread fit prevents loosening under dynamic loads. The adapter's ASTM A108 material certification ensures batch-to-batch consistency for quality-critical manufacturing processes across automotive, defense, and industrial automation sectors.
Specification Summary & Compliance
This inch-system adapter maintains Class 2B thread fit tolerances for both 2-56 and 4-40 connections, ensuring precision alignment according to unified thread standards. Manufacturing complies with ASTM A108 specifications for material properties and dimensional accuracy. The product is RoHS 3 (2015/863/EU) compliant with exemption 6(a)-I for lead as an alloying element in steel, meeting international environmental regulations for industrial components.
