S-91072A384 ASTM A108, ASTM B633 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: Effortlessly adapts between 4-40 and 10-32 thread sizes, eliminating compatibility issues in inch-based assemblies.
- Superior Corrosion Resistance: Zinc-plated steel construction provides reliable protection against rust and environmental wear in industrial settings.
- Exceptional Mechanical Strength: With 75,000 psi tensile strength and Rockwell B65 hardness, it withstands high-stress applications without deformation.
- Precision Thread Engagement: Class 2B thread fit ensures smooth, accurate mating with minimal risk of cross-threading or loosening.
- Robust External Hex Drive: 3/8" hex size and 2" length offer superior torque application and tool grip for secure installations.
- Industry-Compliant Reliability: Meets ASTM A108 and ASTM B633 standards, guaranteeing consistent performance in regulated environments.
- Environmentally Conscious Design: RoHS 3 compliant with exemption 6(a)-I, ensuring safe use while maintaining alloy integrity.
Professional Applications & Engineering Value
This female hex thread adapter solves critical challenges in precision assembly by providing a durable, zinc-plated steel bridge between dissimilar inch thread sizes. Its external hex drive design allows for high-torque applications in confined spaces, while the Class 2B thread fit maintains alignment integrity in vibrating environments. Engineers value its ability to prevent galvanic corrosion in mixed-material setups and its consistent performance in heavy-duty industrial equipment, automotive systems, and machinery requiring reliable thread adaptation. The combination of Rockwell B65 hardness and precise manufacturing ensures long-term service life without thread stripping or fatigue failure.
Specification Summary & Compliance
This adapter maintains Class 2B thread fit tolerances for both 4-40 and 10-32 threads, ensuring precise engagement per inch-series standards. Manufacturing complies with ASTM A108 for steel bar and ASTM B633 for zinc plating specifications. The product is RoHS 3 (2015/863/EU) compliant with exemption 6(a)-I for lead as an alloying element in steel, meeting environmental regulations without compromising mechanical properties.
