S-98434A703 ASTM A582 Metric-to-Metric Female Hex Thread Adapters

Key Features & Benefits at a Glance

• Corrosion-resistant 18-8 stainless steel ensures long-term reliability in harsh industrial environments, reducing replacement costs and downtime.
• High tensile strength of 85,000 psi provides exceptional load-bearing capacity, preventing thread stripping under high-stress conditions.
• Precision Class 6H thread fit on both M3 and M4 ends guarantees secure, vibration-resistant connections for critical assemblies.
• External hex drive (10mm) allows for easy installation and removal with standard tools, improving workflow efficiency.
• Rockwell B80 hardness offers superior wear resistance, maintaining thread integrity through repeated use.
• REACH and RoHS 3 compliance ensures adherence to environmental and safety regulations, supporting sustainable procurement policies.
• ASTM A582 specification confirms consistent manufacturing quality, delivering reliable performance in metric-to-metric adaptations.

Professional Applications & Engineering Value

This M3 to M4 female hex thread adapter addresses common challenges in precision assembly by providing a robust, corrosion-resistant interface for connecting mismatched metric threads. Engineered from 18-8 stainless steel, it prevents galvanic corrosion and withstands exposure to moisture, chemicals, and temperature variations, making it ideal for industrial machinery, automotive systems, and electronic enclosures. The Class 6H thread fit ensures minimal backlash and secure fastening in high-vibration environments, while the external hex drive simplifies maintenance in confined spaces. By enabling seamless metric-to-metric adaptation, this adapter reduces inventory complexity and enhances assembly flexibility without compromising on tensile strength or durability.

Specification Summary & Compliance

This adapter features M3 (0.35 mm pitch) and M4 (0.7 mm pitch) female threads with Class 6H tolerance for precise fitment. It complies with ASTM A582 for material consistency, RoHS 3 (2015/863/EU) for restricted substance control, and REACH (EC 1907/2006) for chemical safety. The external hex size is 10 mm with an 18 mm length, ensuring compatibility with standard metric tools.