S-91084A122 ASTM A108 Inch-to-Metric Female Hex Thread Adapters

Key Features & Benefits at a Glance

• Seamless Inch-to-Metric Conversion: Effortlessly connect 6-32 (inch) and M3.5 (metric) components, eliminating compatibility issues and streamlining mixed-standard assemblies.
• Exceptional Tensile Strength: With a tensile strength of 78,000 psi, this adapter reliably handles high-stress applications, reducing the risk of mechanical failure.
• Superior Wear Resistance: The Rockwell B85 hardness ensures long-term durability and resistance to wear, extending the adapter's service life in demanding environments.
• Precision Thread Fit: Featuring Class 2B (inch) and Class 6H (metric) thread fits for smooth, secure connections that minimize cross-threading and enhance assembly reliability.
• Corrosion-Resistant Black-Oxide Finish: The Black-Oxide Steel surface provides enhanced corrosion protection, maintaining performance in humid or industrial settings.
• Easy Installation with External Hex Drive: The 1/4" external hex drive allows for quick and straightforward installation using standard tools, boosting assembly efficiency.
• Compliance with Industry Standards: Meets ASTM A108 specifications and is RoHS 3 compliant, ensuring material quality and environmental safety for global supply chains.

Professional Applications & Engineering Value

This 6-32 to M3.5 female hex thread adapter is engineered to solve critical challenges in industries where inch and metric systems intersect, such as automotive, aerospace, and machinery manufacturing. Its Black-Oxide Steel construction and Rockwell B85 hardness provide excellent resistance to corrosion and mechanical stress, addressing common issues like thread galling and premature wear. The precise Class 2B and 6H thread fits ensure leak-proof and vibration-resistant connections, crucial for maintaining integrity in dynamic assemblies. By enabling reliable adaptation between different thread standards, this adapter reduces inventory complexity and downtime, making it an essential component for efficient, multi-national production lines and maintenance operations.

Specification Summary & Compliance

This adapter features precision threads with Class 2B (inch) and Class 6H (metric) tolerances, ensuring accurate and secure fits. It is manufactured in compliance with ASTM A108 standards for material quality and performance. The product is RoHS 3 (2015/863/EU) compliant under exemption 6(a)-I, confirming its adherence to environmental regulations for lead as an alloying element in steel. Key dimensions include a 1/4" hex size and thread lengths of 3/8" (6-32) and 9.5 mm (M3.5), designed for consistent and reliable use in industrial applications.