S-91072A411 ASTM A108 Inch-to-Inch Female Hex Thread Adapters

Key Features & Benefits at a Glance

• Reliable Thread Conversion: Seamlessly adapts 1/4"-20 to 5/16"-18 threads, ensuring compatibility across various inch-based industrial equipment without downtime.
• Exceptional Durability: Constructed from Black-Oxide Steel with a Rockwell B65 hardness, offering superior resistance to wear, corrosion, and harsh environmental conditions.
• High Tensile Strength: Withstands up to 75,000 psi tensile strength, providing secure, long-lasting connections under heavy loads and vibration.
• Precision Thread Fit: Class 2B thread fit on both ends guarantees accurate alignment and reduces the risk of cross-threading, enhancing assembly efficiency.
• Easy Installation & Removal: Features a 1/2" external hex drive and 2 1/2" hex length for straightforward tool engagement and torque application in confined spaces.
• Compliance with Industry Standards: Meets ASTM A108 specifications, ensuring consistent quality and performance in demanding applications.
• Environmental Responsibility: RoHS 3 compliant with exemption, making it suitable for global supply chains while maintaining material integrity.

Professional Applications & Engineering Value

This female hex thread adapter is engineered to solve common challenges in industrial settings, such as mismatched thread sizes and the need for robust, reusable connections. The Black-Oxide Steel material provides a protective layer that minimizes corrosion and extends service life in environments exposed to moisture or chemicals. With a Rockwell B65 hardness and 75,000 psi tensile strength, it handles high-stress applications in machinery, automotive, and construction without deformation. The external hex drive design allows for quick adaptation using standard tools, reducing installation time and improving workflow efficiency. Ideal for inch-to-inch thread adaptation, it ensures reliable performance in assembly lines, maintenance repairs, and equipment upgrades, delivering consistent value where precision and durability are critical.

Specification Summary & Compliance

This adapter maintains precise Class 2B thread fit tolerances for both 1/4"-20 and 5/16"-18 threads, ensuring secure and accurate connections. It adheres to ASTM A108 manufacturing standards, guaranteeing dimensional consistency and mechanical properties. The product is RoHS 3 (2015/863/EU) compliant with exemption 6(a)-I, supporting environmental regulations while delivering high performance in industrial applications.