S-91072A333 ASTM A108 Inch-to-Inch Female Hex Thread Adapters

Key Features & Benefits at a Glance

• Seamless Thread Conversion – Enables reliable connection between 1/2"-13 and 5/8"-11 threaded components without cross-threading risks
• Enhanced Corrosion Resistance – Black-oxide steel finish provides durable protection against rust in demanding industrial environments
• Superior Mechanical Strength – Rockwell B65 hardness rating ensures excellent wear resistance and load-bearing capacity
• Precision Thread Engagement – Class 2B thread fit guarantees consistent, vibration-resistant connections in high-torque applications
• Optimized Tool Access – 7/8" external hex drive with 1 3/4" length allows for easy installation using standard wrenches
• Regulatory Compliance Assurance – Meets REACH and RoHS 3 environmental standards for safe industrial usage
• Material Reliability – ASTM A108 steel construction delivers consistent performance across temperature variations and mechanical stress

Professional Applications & Engineering Value

This female hex thread adapter solves critical connection challenges in industrial assembly and maintenance operations. The Black-Oxide Steel construction combined with Rockwell B65 hardness provides exceptional durability against mechanical wear and environmental exposure, making it ideal for heavy machinery, construction equipment, and manufacturing systems. The precision Class 2B thread fit ensures secure mating between different thread sizes (1/2"-13 to 5/8"-11) while preventing loosening under vibration. The external hex drive design facilitates quick installation in confined spaces, reducing assembly time and improving maintenance efficiency. This inch-to-inch adapter delivers reliable performance in hydraulic systems, pneumatic equipment, and structural applications where thread compatibility and long-term reliability are paramount.

Specification Summary & Compliance

Manufactured to ASTM A108 specifications with Class 2B thread fit tolerance for both thread ends, ensuring precise dimensional accuracy. The adapter maintains compliance with REACH (EC 1907/2006) regulations and RoHS 3 (2015/863/EU) standards with exemption 6(a) for lead as an alloying element in steel. Thread dimensions conform to inch system requirements with 1/2"-13 and 5/8"-11 thread sizes, providing standardized compatibility across industrial fastener systems.