S-91180A552 M10 x 20 mm ISO 8676, DIN 961 Medium-Strength Metric Class 8.8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional durability with Class 8.8 steel construction providing 110,000 psi tensile strength and Rockwell C21 hardness for reliable performance in high-stress environments
• Superior corrosion resistance through zinc plating that extends service life in demanding industrial conditions
• Precision fastening capability with M10x1mm extra fine thread design ensuring secure, vibration-resistant connections in critical applications
• Optimized torque transmission via external hex drive and hex head design for efficient installation and removal with standard tools
• Maximum thread engagement through fully threaded construction that distributes load evenly across the entire fastener length
• International compatibility with Class 6h thread fit and right-hand threading meeting global metric standards for versatile application use
• Regulatory compliance assurance with ISO 8676 (DIN 961), RoHS 3, and REACH standards for quality and environmental responsibility

Professional Applications & Engineering Value

Engineered for precision applications where vibration resistance and exact thread engagement are critical, these M10 extra fine thread hex head screws deliver exceptional performance in machinery assembly, automotive components, and precision equipment. The Class 8.8 steel construction provides the necessary strength for structural applications while maintaining ductility to withstand dynamic loads. The zinc plating offers reliable corrosion protection in industrial environments, extending maintenance intervals and reducing lifecycle costs. With fully threaded design and Class 6h thread fit, these metric screws ensure maximum contact surface area for superior clamping force distribution, making them ideal for applications requiring precise alignment and secure fastening in thin materials or close-tolerance assemblies.

Specification Summary & Compliance

This metric hex head screw features precise M10x1mm extra fine threading with Class 6h thread fit tolerance according to ISO standards. Manufactured to meet ISO 8676 (DIN 961) specifications for dimensional accuracy and performance. The fastener demonstrates full compliance with RoHS 3 (2015/863/EU) for hazardous substance restrictions and REACH (EC 1907/2006) regulations for chemical safety. The Class 8.8 strength rating ensures consistent mechanical properties with 110,000 psi tensile strength and Rockwell C21 hardness, providing reliable performance in industrial fastening applications.