S-90447A146 M18 x 140 mm 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 rating 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
• Easy installation and removal with external hex drive design and standard 27mm head width
• Secure fastening in coarse materials achieved through M18 coarse thread with 2.5mm pitch and Class 6g thread fit
• Optimized weight distribution with partial threading design that maintains structural integrity across the 140mm length
• Global compliance assurance meeting DIN 931 specifications plus RoHS 3 and REACH environmental regulations
• Versatile industrial application with right-hand metric threading compatible with standard industrial equipment

Professional Applications & Engineering Value

This M18 hex head screw delivers critical engineering advantages for industrial applications requiring high clamping force and vibration resistance. The Class 10.9 steel construction provides exceptional tensile strength (150,000 psi) that prevents failure under extreme loads, while the Rockwell C32 hardness ensures superior wear resistance in high-cycle environments. The partially threaded design concentrates thread engagement where needed most, reducing weight without compromising structural integrity. With coarse metric threading (2.5mm pitch) and Class 6g thread fit, these hex head screws install quickly in various materials while maintaining precise tolerance control. The external hex drive and standardized dimensions ensure compatibility with common industrial tools, streamlining assembly processes in machinery, structural steelwork, and heavy equipment manufacturing.

Specification Summary & Compliance

This hex head screw features precise Class 6g thread fit tolerance per metric standards with M18 x 2.5mm coarse threading and 37mm minimum thread length. Manufactured to DIN 931 specifications with Class 10.9 strength rating, the fastener demonstrates full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The 140mm length with partial threading provides optimal performance characteristics for industrial fastening applications requiring high-strength metric bolts.