S-90854A317 M20 x 60 mm ISO 4017, DIN 933 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 protection through zinc yellow-chromate plating that extends service life in harsh industrial environments
• Optimized torque transmission with external hex drive design and 30mm head width for secure installation and removal
• Enhanced thread engagement with fully threaded M20x2.5mm coarse pitch design for faster assembly and improved vibration resistance
• Precision manufacturing with Class 6h thread fit ensuring consistent quality and reliable mating with nuts and threaded holes
• Robust material performance featuring Rockwell C32 hardness steel construction for excellent durability and wear resistance
• Global compliance assurance meeting ISO 4017/DIN 933 specifications and environmental regulations including RoHS 3 and REACH

Professional Applications & Engineering Value

This M20 hex head screw delivers critical engineering solutions for heavy-duty industrial applications where high tensile strength and reliable fastening are paramount. The Class 10.9 metric hex bolt construction, combined with zinc yellow-chromate plated surface treatment, provides exceptional corrosion resistance for machinery, structural steel connections, and equipment exposed to demanding environmental conditions. The fully threaded design with coarse pitch threading ensures rapid installation and superior clamping force distribution across the entire 60mm length. Engineered with external hex drive configuration, these steel fasteners enable high-torque applications in construction, manufacturing, and automotive industries while maintaining precise thread fit for vibration-resistant assemblies that withstand extreme operational stresses.

Specification Summary & Compliance

This metric hex head screw features precise M20x2.5mm coarse thread with Class 6h thread fit tolerance, manufactured to ISO 4017/DIN 933 standards for dimensional accuracy and interchangeability. The fastener meets Class 10.9 strength requirements with 150,000 psi tensile strength and Rockwell C32 hardness. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring adherence to international safety and sustainability standards for industrial components.