S-97760A231 M6 x 30 mm ASME B18.2.3.1M, ISO 898-1 Left-Hand Threaded Medium-Strength Metric Class 8.8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 110,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
• Left-hand thread design provides secure fastening in applications where right-hand rotation could cause loosening, ideal for specific machinery and safety-critical assemblies.
• Class 8.8 strength grade and Rockwell C21 hardness offer superior durability and resistance to deformation under heavy loads.
• Fully threaded M6 x 1mm coarse thread with Class 6g fit ensures quick assembly, excellent grip, and consistent performance in a wide range of materials.
• External hex drive and standard 10mm head allow for easy installation and removal with common tools, speeding up assembly and maintenance processes.
• Compliance with ASME B18.2.3.1M and ISO 898-1 standards guarantees dimensional accuracy and interchangeability, ensuring fit and function in global engineering projects.
• RoHS 3 and REACH compliance confirms the screw is free from hazardous substances, making it suitable for use in environmentally regulated and sensitive industries.

Professional Applications & Engineering Value

This M6 left-hand hex head screw is engineered to address critical challenges in industrial settings where standard right-hand threads may loosen under specific rotational forces. Made from high-strength Class 8.8 steel, it provides a robust solution for heavy-duty assemblies in machinery, automotive, and construction applications. The coarse thread with 1mm pitch ensures rapid installation and superior holding power in softer materials or where vibration resistance is paramount. Its fully threaded 30mm length maximizes engagement and load distribution, reducing stress concentration points. The external hex drive facilitates easy torque application with standard wrenches, streamlining maintenance and reducing downtime. By combining a left-hand metric thread with high tensile strength, this screw prevents unintentional loosening in rotating equipment, enhancing safety and reliability in demanding engineering environments.

Specification Summary & Compliance

This screw features precise M6 x 1mm coarse threads with a Class 6g thread fit per ISO standards, ensuring accurate engagement and interchangeability. It conforms to ASME B18.2.3.1M and ISO 898-1 specifications for dimensional and mechanical properties. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) confirms adherence to environmental and safety regulations, making it suitable for global supply chains and sensitive applications.