S-91072A331 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
- Seamless thread conversion between 3/8"-16 and 1/2"-13 systems, enabling flexible equipment connections without mismatches
- Enhanced corrosion resistance from black-oxide steel coating, extending service life in humid or demanding industrial environments
- Superior mechanical strength with Rockwell B65 hardness, preventing deformation under high-torque assembly conditions
- Precision thread engagement through Class 2B thread fit, reducing cross-threading risks and ensuring leak-free connections
- Optimized wrench access with 5/8" external hex and 1 1/4" length, allowing full torque application in confined spaces
- Regulatory compliance assurance with REACH and RoHS 3 standards, meeting global environmental and safety requirements
- Reliable performance validation per ASTM A108 specifications, guaranteeing consistent quality across production batches
Professional Applications & Engineering Value
This female hex thread adapter solves critical interconnection challenges in industrial maintenance and assembly lines. The black-oxide steel construction provides essential corrosion protection for automotive manufacturing, hydraulic systems, and outdoor equipment where moisture exposure is common. With Rockwell B65 hardness, it maintains structural integrity when adapting between 3/8"-16 and 1/2"-13 threaded components in high-vibration environments. The external hex drive design enables rapid installation using standard wrenches, reducing downtime during equipment modifications. Engineers specify this inch-to-inch adapter for piping systems, machinery retrofits, and production tooling where reliable thread conversion is essential for operational continuity.
Specification Summary & Compliance
Manufactured to ASTM A108 standards with Class 2B thread fit tolerances for both 3/8"-16 and 1/2"-13 threads. Full compliance with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) regulations, including exemption 6(a) for lead as steel alloying element. Dimensional specifications include 5/8" hex size, 1 1/4" hex length, and respective thread lengths of 3/8" and 1/2".
