S-90447A170 M8 x 110 mm DIN 931 High-Strength Metric Class 10.9 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional Load-Bearing Capacity - Class 10.9 strength grade delivers 150,000 psi tensile strength for reliable performance in high-stress applications
• Superior Durability & Wear Resistance - Rockwell C32 hardness ensures long service life and resistance to deformation under heavy loads
• Optimized Thread Design - M8 x 1.25mm coarse thread spacing provides excellent grip and faster installation in various materials
• Precision Engineering - Class 6g thread fit guarantees consistent performance and secure fastening in industrial assemblies
• Versatile Partial Threading - 22mm minimum thread length allows for both threaded and unthreaded shaft applications
• Easy Installation & Removal - External hex drive with 13mm head width offers superior torque transmission and tool accessibility
• Regulatory Compliance Assurance - Meets DIN 931 specifications and environmental standards for global industrial use

Professional Applications & Engineering Value

This M8 hex head screw with Class 10.9 strength rating addresses critical engineering challenges in heavy-duty applications where fastener failure is not an option. The steel construction combined with Rockwell C32 hardness provides exceptional resistance to vibration loosening and mechanical stress, making it ideal for construction equipment, machinery frames, and structural assemblies. The metric coarse thread (1.25mm pitch) ensures reliable engagement in both metallic and composite materials, while the partial threading design allows for precise clamping force distribution. As a DIN 931 compliant fastener with external hex drive, it delivers consistent performance in automotive, manufacturing, and infrastructure projects where high tensile strength and dimensional accuracy are paramount for safety and longevity.

Specification Summary & Compliance

This hex head screw features precise Class 6g thread fit tolerance according to metric standards, ensuring dimensional accuracy and compatibility with standard nuts and threaded holes. The fastener strictly adheres to DIN 931 manufacturing specifications for hex head bolts and demonstrates full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. With M8 x 1.25mm coarse thread configuration and 110mm total length, this partially threaded screw maintains consistent performance characteristics across industrial applications requiring reliable, high-strength fastening solutions.