S-91310A535 M8 x 25 mm ISO 4017, DIN 933 High-Strength Metric Class 10.9 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior load-bearing capacity with 150,000 psi tensile strength for demanding industrial applications
• Exceptional durability thanks to Rockwell C32 hardness and Class 10.9 strength grade
• Optimal torque transmission through external hex drive design and 13mm head width
• Reliable fastening performance with fully threaded M8x1.25 coarse thread configuration
• Precise dimensional consistency maintained through Class 6g thread fit tolerance
• Broad compatibility with standard metric tooling and existing assembly systems
• Environmental compliance assurance meeting RoHS 3 and REACH regulatory requirements

Professional Applications & Engineering Value

Engineered for critical structural applications, these M8 hex head screws deliver exceptional performance in heavy machinery, construction frameworks, and industrial equipment assembly. The Class 10.9 steel construction provides reliable resistance against vibration-induced loosening and mechanical stress, while the fully threaded metric coarse design ensures maximum grip length and load distribution. The external hex drive facilitates high-torque installation without stripping, making them ideal for automated assembly processes and maintenance operations where consistent fastening pressure is paramount. Their ISO 4017/DIN 933 compliance guarantees interchangeability and reliability across global engineering standards.

Specification Summary & Compliance

This metric hex head screw features M8x1.25 coarse threading with Class 6g tolerance for precise fitment, 25mm fully threaded length, and 13mm hex head dimensions. Manufactured in compliance with ISO 4017/DIN 933 specifications for dimensional accuracy and mechanical properties. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors without hazardous substance restrictions.