S-91310A960 M20 x 110 mm ISO 4014, DIN 931 High-Strength Metric Class 10.9 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior load-bearing capacity with Class 10.9 high-strength steel construction, ensuring reliable performance under extreme stress conditions
• Exceptional durability and wear resistance thanks to Rockwell C32 hardness, extending service life in demanding industrial environments
• Optimized thread engagement with partially threaded design and 46mm minimum thread length for secure fastening in thick materials
• Precise installation and removal with external hex drive and 30mm head width, providing excellent torque transmission
• Enhanced vibration resistance through coarse 2.5mm pitch threads that maintain grip under dynamic loads
• Guaranteed dimensional accuracy with Class 6g thread fit, ensuring consistent performance and interchangeability
• Environmental compliance assurance meeting RoHS 3 and REACH regulations for safe, sustainable industrial use

Professional Applications & Engineering Value

This M20 hex head screw delivers critical engineering solutions for heavy machinery, structural steel connections, and industrial equipment assembly. The Class 10.9 steel construction provides exceptional tensile strength (150,000 PSI) to withstand extreme mechanical loads and prevent catastrophic failures. The partially threaded design with coarse metric thread spacing ensures optimal clamping force distribution while resisting vibration-induced loosening. With external hex drive compatibility, installation becomes efficient using standard industrial tools, reducing assembly time in manufacturing plants, construction sites, and infrastructure projects. The combination of high-strength material and precise ISO 4014/DIN 931 manufacturing standards makes this fastener ideal for applications where safety and reliability are paramount.

Specification Summary & Compliance

This hex head screw features M20 x 2.5mm metric coarse threads with Class 6g thread fit tolerance, ensuring precise dimensional accuracy according to ISO 4014/DIN 931 specifications. The fastener maintains 110mm total length with 46mm minimum thread length and right-hand thread direction. Manufacturing compliance includes adherence to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, guaranteeing safe usage across industrial sectors while meeting international quality standards for high-strength industrial fasteners.