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

Key Features & Benefits at a Glance

• Seamless Metric-to-Metric Conversion: Enables reliable connection between M5 and M3.5 components, eliminating compatibility issues in mixed-assembly environments.
• Superior Corrosion Resistance: Zinc-plated steel construction provides lasting protection against rust and environmental wear, extending service life in demanding conditions.
• High Mechanical Strength: With 78,000 psi tensile strength and Rockwell B85 hardness, withstands heavy loads and repeated use without deformation.
• Precision Thread Engagement: Class 6H thread fit on both ends ensures secure, vibration-resistant connections that maintain integrity under stress.
• Easy Installation & Removal: 10mm external hex drive with 50mm length offers ample torque application surface for quick assembly/disassembly with standard tools.
• Rigorous Quality Assurance: Compliance with ASTM A108 and ASTM B633 guarantees consistent dimensional accuracy and material properties batch after batch.
• Environmentally Conscious Manufacturing: RoHS 3 compliance ensures safe use in regulated industries while maintaining performance standards.

Professional Applications & Engineering Value

This female hex thread adapter solves critical interconnection challenges in precision equipment manufacturing, automotive subsystems, and industrial machinery maintenance. The zinc-plated steel construction combined with Class 6H thread fit prevents cross-threading and galling during repeated installations - a common pain point in field service applications. Engineers benefit from the metric-to-metric conversion capability when integrating components from different suppliers or retrofitting existing systems. The external hex drive design allows torque application in confined spaces where socket access is limited, while the Rockwell B85 hardness ensures the adapter withstands wrenching forces without rounding. These features make it ideal for production lines requiring frequent tool changes or assemblies subject to vibration-induced loosening.

Specification Summary & Compliance

Thread specifications include M5×0.8mm (12.7mm length) and M3.5×0.6mm (9.5mm length), both maintaining Class 6H thread fit per ISO standards for precision engagement. Manufacturing complies with ASTM A108 for steel bar properties and ASTM B633 for zinc plating requirements. The adapter is RoHS 3 (2015/863/EU) compliant with exemption 6(a)-I for lead as steel alloying element. External hex drive features 10mm across flats with 50mm length for standardized tool compatibility.