S-92912A104 ASTM A108, ASTM B633 Metric-to-Metric Female Hex Thread Adapters

Key Features & Benefits at a Glance

• Reliable Thread Adaptation: Seamlessly connects M3.5 to M4 metric threads with Class 6H fit, ensuring precise alignment and reducing assembly errors in industrial setups.
• Exceptional Durability: Constructed from zinc-plated steel with Rockwell B85 hardness, offering superior resistance to wear, corrosion, and mechanical stress for extended service life.
• High Tensile Strength: Withstands up to 78,000 psi, providing robust performance under heavy loads and preventing failure in demanding applications.
• Easy Installation & Removal: Features a 6 mm external hex drive and 37 mm length for secure tool grip, facilitating quick maintenance and reducing labor time.
• Compliance with Industry Standards: Meets ASTM A108 and ASTM B633 specifications, ensuring consistent quality and compatibility with global engineering requirements.
• Environmental Responsibility: RoHS 3 compliant with exemption 6(a)-I, supporting sustainable practices by restricting hazardous substances without compromising performance.
• Versatile Metric Sizing: Designed with precise thread pitches (0.6 mm and 0.7 mm) and lengths (9.5 mm and 11.1 mm), enabling flexible use across various metric fastener systems.

Professional Applications & Engineering Value

This female hex thread adapter addresses common challenges in industrial assembly, such as thread mismatches and component fatigue. Made from zinc-plated steel, it provides a protective barrier against rust and oxidation, crucial for environments with high humidity or chemical exposure. The Class 6H thread fit ensures tight tolerances, minimizing vibration-induced loosening and enhancing connection integrity in machinery, automotive, and electronics sectors. By adapting M3.5 to M4 metric threads, it streamlines inventory management and reduces the need for custom parts, offering a cost-effective solution for precision thread adaptation in OEM and MRO applications. Its robust design supports continuous operation, reducing downtime and maintenance costs.

Specification Summary & Compliance

This adapter maintains high dimensional accuracy with Class 6H thread fit per ISO standards, ensuring reliable performance in metric systems. It adheres to manufacturing specifications under ASTM A108 and ASTM B633, guaranteeing material consistency and surface treatment quality. Compliant with RoHS 3 (2015/863/EU) under exemption 6(a)-I for lead as an alloying element in steel, it meets environmental regulations while delivering 78,000 psi tensile strength and Rockwell B85 hardness for industrial durability.