S-91310A116 M18 x 80 mm ISO 4014, DIN 931 High-Strength Metric Class 10.9 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with Class 10.9 strength grade and 150,000 psi tensile strength for reliable performance in demanding applications
• Superior corrosion resistance and durability thanks to black steel construction and Rockwell C32 hardness
• Optimized thread engagement with coarse 2.5mm pitch and Class 6g thread fit ensuring secure fastening in various materials
• Easy installation and removal with standard 27mm external hex head design compatible with common tools
• Versatile partial threading with 37mm minimum thread length providing both gripping strength and unthreaded shank stability
• Guaranteed interchangeability through full compliance with ISO 4014/DIN 931 international standards
• Environmentally responsible manufacturing meeting RoHS 3 and REACH compliance for sustainable procurement

Professional Applications & Engineering Value

This M18 hex head screw delivers critical engineering solutions for industrial applications where vibration resistance and structural integrity are paramount. The Class 10.9 steel construction provides exceptional tensile strength for heavy machinery, structural steel connections, and equipment assembly. The partially threaded design combines the benefits of maximum thread engagement in joined materials with an unthreaded shank that resists shear forces. With coarse metric threads and right-hand threading, installation is efficient even in challenging materials, while the external hex drive ensures high torque application without stripping. The black surface treatment enhances corrosion resistance, making these industrial fasteners suitable for manufacturing plants, construction projects, and automotive applications where reliability cannot be compromised.

Specification Summary & Compliance

This metric hex head screw features precise M18 x 2.5mm coarse threading with Class 6g thread tolerance, ensuring proper fit in accordance with international standards. The 80mm length with 37mm minimum thread length provides optimal fastening capabilities. Manufacturing strictly follows ISO 4014/DIN 931 specifications for dimensional accuracy and performance consistency. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting the latest substance restriction requirements for industrial components.