S-91072A324 ASTM A108 Inch-to-Inch Female Hex Thread Adapters

Key Features & Benefits at a Glance

• Seamless Thread Conversion – Enables reliable connection between 10-24 and 1/4"-20 threaded components, eliminating compatibility issues in inch-based assemblies
• Superior Corrosion Resistance – Black-oxide steel finish provides enhanced protection against rust and wear in demanding industrial environments
• Optimized Mechanical Strength – Rockwell B65 hardness rating ensures excellent durability and resistance to deformation under load
• Precision Thread Engagement – Class 2B thread fit guarantees consistent, secure fastening with minimal risk of cross-threading
• Easy Installation & Removal – External 1/2" hex drive design allows for quick tool engagement with standard wrenches
• Rigorous Quality Assurance – Manufactured to ASTM A108 specifications for consistent dimensional accuracy and performance
• Environmental Compliance Ready – Meets REACH and RoHS 3 standards for safe use in regulated industrial applications

Professional Applications & Engineering Value

This female hex thread adapter solves critical connectivity challenges in industrial maintenance, machinery assembly, and equipment manufacturing where different thread standards coexist. The black-oxide steel construction provides essential corrosion protection in environments exposed to moisture, chemicals, or outdoor conditions, while the Rockwell B65 hardness maintains structural integrity under vibration and torque loads. The precision Class 2B thread fit ensures leak-proof connections in hydraulic systems, pneumatic equipment, and precision instruments, reducing downtime from thread failure. With its external hex drive and standardized 1/2" hex size, technicians can quickly adapt threaded components without special tools, making it ideal for field service, production lines, and MRO applications requiring reliable inch-to-inch adaptation.

Specification Summary & Compliance

This adapter maintains Class 2B thread fit tolerance for both 10-24 and 1/4"-20 threads, ensuring precise engagement according to inch standard specifications. Manufacturing complies with ASTM A108 standards for material consistency and dimensional accuracy. The product is fully compliant with REACH (EC 1907/2006) regulations and RoHS 3 (2015/863/EU) with exemption 6(a) for lead as an alloying element in steel, meeting international environmental and safety requirements for industrial components.