S-92912A110 ASTM A108, ASTM B633 Metric-to-Metric Female Hex Thread Adapters

Key Features & Benefits at a Glance

• Superior load-bearing capability with 78,000 psi tensile strength for reliable performance in high-stress applications
• Enhanced corrosion resistance through zinc-plated steel construction, extending service life in demanding environments
• Precision thread engagement with Class 6H thread fit on both ends ensuring secure, vibration-resistant connections
• Optimized torque transmission via 13mm external hex drive design for easy installation with standard tools
• Material durability with Rockwell B85 hardness providing excellent wear resistance and thread integrity
• Seamless metric conversion between M6×1mm and M3.5×0.6mm threads for versatile assembly solutions
• Regulatory compliance assurance meeting ASTM A108, ASTM B633 and RoHS 3 standards for quality and environmental safety

Professional Applications & Engineering Value

This metric-to-metric female hex thread adapter solves critical connection challenges in industrial assemblies where different thread sizes must interface reliably. The zinc-plated steel construction provides essential corrosion protection for machinery exposed to humidity, chemicals, or outdoor conditions, while the Rockwell B85 hardness ensures threads maintain integrity through repeated disassembly cycles. Engineers benefit from the Class 6H thread fit precision, which prevents cross-threading and ensures vibration-resistant connections in automotive components, electrical enclosures, and precision equipment. The external hex drive design allows for high-torque installation without damaging the internal threads, making this adapter ideal for production lines where speed and reliability are paramount. With its ability to bridge M6 and M3.5 metric systems, this component eliminates the need for custom machining in multi-thread applications.

Specification Summary & Compliance

This adapter maintains Class 6H thread tolerance on both M6×1mm (16mm length) and M3.5×0.6mm (9.5mm length) connections, ensuring precise fitment according to metric standards. Manufacturing follows ASTM A108 for steel bar material specifications and ASTM B633 for zinc plating requirements. 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 regulations while maintaining mechanical performance.