S-97088A205 ASTM A108, ASTM B633 Inch-to-Inch Female Hex Thread Adapters

Key Features & Benefits at a Glance

• Seamless Thread Conversion: Enables reliable connection between 1/4"-20 and 1/2"-13 threaded components, eliminating compatibility issues in inch-based systems.
• Exceptional Durability: Constructed from zinc-plated steel with Rockwell B65 hardness for superior resistance to wear, deformation, and industrial stress.
• High Tensile Strength: Withstands up to 75,000 psi tensile strength, ensuring secure, long-lasting performance in demanding applications.
• Precision Thread Fit: Features Class 2B thread fit on both ends for smooth engagement and reduced risk of cross-threading or loosening.
• Corrosion-Resistant Finish: Zinc plating provides enhanced protection against rust and environmental exposure, extending service life.
• Easy Installation & Removal: External hex drive with 5/8" size and 1 1/4" length allows for straightforward wrench access in tight spaces.
• Industry Compliance: Meets ASTM A108 and ASTM B633 specifications, ensuring material consistency and manufacturing quality.

Professional Applications & Engineering Value

This female hex thread adapter is engineered to solve critical connection challenges in industrial and mechanical systems where mismatched thread sizes can cause downtime or equipment failure. By converting 1/4"-20 to 1/2"-13 threads with precision Class 2B fit, it maintains alignment and load distribution in assemblies such as machinery frames, hydraulic systems, and structural fixtures. The zinc-plated steel construction and Rockwell B65 hardness provide resilience against vibration and mechanical stress, while the external hex design simplifies maintenance in confined areas. Ideal for OEM manufacturing, repair shops, and heavy-duty applications, this adapter ensures reliable performance in automotive, construction, and assembly line environments where thread integrity is paramount.

Specification Summary & Compliance

This adapter adheres to Class 2B thread fit tolerances for consistent engagement and is manufactured in compliance with ASTM A108 and ASTM B633 standards for material and coating quality. It is fully RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, meeting environmental and safety regulations for industrial use.