S-97760A926 M10 x 25 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 with Class 8.8 rating and 110,000 PSI capability for reliable performance in high-stress applications
• Superior corrosion resistance through zinc-plated steel construction, extending service life in demanding environments
• Optimized left-hand threading provides secure fastening in applications requiring reverse-thread direction for safety and specialized machinery
• Maximum thread engagement with fully threaded coarse pitch design (M10x1.5) ensures superior holding power and vibration resistance
• Precision manufacturing to Class 6h thread fit guarantees consistent quality and reliable installation across multiple applications
• Enhanced durability with Rockwell C21 hardness rating maintains structural integrity under repeated stress and load conditions
• Standard-compliant design meeting ASME B18.2.3.1M and ISO 898-1 specifications ensures interchangeability and engineering confidence

Professional Applications & Engineering Value

This left-hand metric hex head screw addresses critical engineering challenges in industrial applications where reverse-thread direction is essential for safety and operational requirements. The Class 8.8 steel construction combined with zinc-plated finish provides exceptional corrosion resistance in harsh environments while maintaining 110,000 PSI tensile strength. The fully threaded coarse pitch design (M10x1.5) ensures maximum thread engagement and superior vibration resistance in heavy machinery, automotive assemblies, and specialized equipment. With precise Class 6h thread fit and external hex drive, these screws deliver reliable installation torque and consistent performance in high-vibration applications where loosening prevention is critical.

Specification Summary & Compliance

Manufactured to precise Class 6h thread fit tolerance with metric coarse threading (M10x1.5) and 25mm length. Complies with ASME B18.2.3.1M and ISO 898-1 standards for dimensional accuracy and mechanical properties. The Class 8.8 strength rating ensures consistent performance with 110,000 PSI tensile strength and Rockwell C21 hardness. Meets industry standards for quality assurance and engineering reliability in industrial applications.