S-91084A128 ASTM A108 Inch-to-Metric Female Hex Thread Adapters

Key Features & Benefits at a Glance

• Seamless Thread Conversion: Effortlessly connect 8-32 inch and M5 metric components, eliminating compatibility issues in mixed-standard assemblies.
• High-Torque Transmission: The 3/8" external hex drive and 2" hex length provide superior grip and leverage for reliable, high-torque fastening operations.
• Exceptional Strength & Durability: With a tensile strength of 78,000 psi and Rockwell B85 hardness, it withstands heavy loads and resists deformation in demanding applications.
• Enhanced Corrosion Resistance: The black-oxide steel finish offers improved protection against rust and wear, extending service life in harsh industrial environments.
• Precision Thread Fit: Class 2B (inch) and Class 6H (metric) thread fits ensure accurate, secure connections with minimal risk of cross-threading or loosening.
• Industry Compliance & Reliability: Manufactured to ASTM A108 standards and RoHS 3 compliant, guaranteeing material consistency and environmental safety for global projects.
• Versatile Industrial Use: Designed for reliable performance in machinery, equipment manufacturing, and automotive systems where inch-to-metric adaptation is critical.

Professional Applications & Engineering Value

This Inch-to-Metric Female Hex Thread Adapter solves critical engineering challenges in global manufacturing and maintenance by enabling seamless integration between 8-32 (inch) and M5 (metric) threaded systems. Crafted from black-oxide steel with a Rockwell B85 hardness, it resists mechanical stress and environmental corrosion, reducing downtime in industrial settings. The external hex drive and precise Class 2B/6H thread fits ensure quick, tool-friendly installation and vibration-resistant connections, ideal for assembly lines, automotive repairs, and heavy machinery. Its high 78,000 psi tensile strength supports robust load-bearing applications, while RoHS 3 compliance makes it suitable for regulated industries, enhancing operational efficiency and component longevity.

Specification Summary & Compliance

This adapter features precise thread dimensions: 8-32 (inch) with Class 2B fit and M5x0.8 mm (metric) with Class 6H fit, ensuring accurate engagement and interchangeability. It meets ASTM A108 material specifications for consistent quality and performance. The product is RoHS 3 (2015/863/EU) compliant under exemption 6(a)-I, adhering to environmental standards for lead as an alloying element in steel, making it safe for international industrial use.