S-91072A406 ASTM A108 Inch-to-Inch Female Hex Thread Adapters

Key Features & Benefits at a Glance

• Corrosion-resistant black-oxide steel construction extends service life in harsh industrial environments
• Rockwell B65 hardness rating provides excellent wear resistance and maintains thread integrity
• 75,000 psi tensile strength ensures reliable performance under heavy loads and vibration
• Class 2B thread fit on both ends guarantees precise mating with standard fasteners
• 1/2" external hex drive allows for easy installation with common wrench tools
• Female-to-female design enables seamless transition between 6-32 and 1/4"-20 thread systems
• RoHS 3 compliance meets international environmental standards for industrial use

Professional Applications & Engineering Value

This female hex thread adapter solves critical connection challenges in industrial assembly and maintenance operations. Engineered from black-oxide steel with Rockwell B65 hardness, it withstands repeated torque applications without galling or deformation. The 6-32 to 1/4"-20 thread conversion capability eliminates the need for multiple adapters in equipment with mixed thread standards, while the external hex drive and generous 2 1/2" hex length provide superior grip for high-torque installations. Ideal for machinery, automotive, and electrical enclosures where reliable thread adaptation is essential for system integrity.

Specification Summary & Compliance

This adapter maintains Class 2B thread fit tolerances on both ends (6-32 and 1/4"-20) per industry standards. Manufactured to ASTM A108 specifications with 3/8" and 5/8" thread lengths respectively. Compliant with RoHS 3 (2015/863/EU) regulations under exemption 6(a)-I for lead as an alloying element in steel, ensuring environmental responsibility in industrial applications.