S-97760A927 M10 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

• Superior corrosion resistance with zinc-plated steel construction for extended service life in harsh industrial environments
• Exceptional mechanical strength with Class 8.8 rating and 110,000 PSI tensile strength for reliable performance in high-stress applications
• Precision left-hand threading (M10x1.5mm coarse) provides secure fastening in specialized assemblies requiring reverse-thread direction
• Optimal hardness and durability with Rockwell C21 rating ensuring consistent performance under repeated loading conditions
• Full threading design enables maximum grip length and uniform stress distribution across the entire fastener
• Standard-compliant manufacturing meeting ASME B18.2.3.1M and ISO 898-1 specifications for guaranteed dimensional accuracy and interchangeability
• External hex drive configuration allows for high-torque installation using standard tools while preventing head stripping

Professional Applications & Engineering Value

This left-hand hex head screw delivers critical engineering solutions where standard right-hand threads would compromise safety or functionality. The Class 8.8 steel construction with zinc plating provides essential corrosion protection for outdoor equipment, machinery, and automotive assemblies exposed to environmental elements. The coarse metric threading (1.5mm pitch) ensures rapid installation and superior vibration resistance in high-stress mechanical systems. With Class 6h thread fit precision and fully threaded design, this fastener maintains consistent clamping force in demanding applications including rotating machinery, conveyor systems, and specialized industrial equipment where reverse-direction threading prevents accidental loosening from rotational forces.

Specification Summary & Compliance

Manufactured to exact metric dimensions (M10x1.5x30mm) with Class 6h thread tolerance ensuring precise fitment. Complies with ASME B18.2.3M and ISO 898-1 standards for dimensional accuracy and mechanical properties. The Class 8.8 strength rating guarantees minimum tensile strength of 110,000 PSI with Rockwell C21 hardness. Zinc-plated finish provides corrosion protection while maintaining compliance with industrial fastener specifications for reliable performance in professional applications.