S-91084A133 ASTM A108 Inch-to-Metric Female Hex Thread Adapters

Key Features & Benefits at a Glance

• Seamless Inch-to-Metric Conversion - Enables reliable connections between 6-32 (inch) and M8 (metric) threaded components, eliminating compatibility issues in mixed-standard assemblies
• Exceptional Durability - Black-Oxide Steel construction with Rockwell B85 hardness provides superior resistance to wear and corrosion in demanding industrial environments
• High-Strength Performance - 78,000 psi tensile strength ensures secure, vibration-resistant connections that withstand heavy mechanical loads
• Precision Thread Engagement - Class 2B (inch) and Class 6H (metric) thread fits guarantee accurate mating and prevent cross-threading damage
• Easy Installation & Removal - External 1/2" hex drive design allows for standard wrench access, reducing installation time and labor costs
• Compliance Assurance - Meets ASTM A108 specifications and RoHS 3 compliance for quality assurance and environmental responsibility
• Optimized Dimensions - 2 1/2" hex length and 16mm thread length provide sufficient gripping surface and thread engagement for stable connections

Professional Applications & Engineering Value

This female hex thread adapter solves critical challenges in industrial applications where inch-to-metric conversion is required. The Black-Oxide Steel construction with corrosion-resistant surface treatment ensures longevity in harsh environments, while the Class 2B/6H thread fits maintain precise alignment between different threading systems. Engineering teams benefit from the adapter's ability to bridge international equipment standards, particularly in automotive, machinery, and electrical enclosures where mixed 6-32 to M8 connections are common. The external hex drive design facilitates quick maintenance and reduces assembly time, making it ideal for production lines requiring frequent component changes. With its 78,000 psi tensile strength, this adapter prevents thread stripping under high torque conditions, ensuring reliable performance in vibration-prone applications.

Specification Summary & Compliance

This adapter maintains Class 2B tolerance for 6-32 inch threads and Class 6H tolerance for M8 metric threads, ensuring precise thread engagement across both systems. Manufactured according to ASTM A108 specifications, the component features a 1/2" external hex drive with 2 1/2" length and 16mm thread engagement. The product is RoHS 3 (2015/863/EU) compliant with exemption 6(a)-I for lead as an alloying element in steel, meeting international environmental standards while maintaining mechanical performance requirements for industrial applications.