S-95735A118 M12 x 40 mm JIS B 1189 Type 2 JIS High-Strength Steel Flanged 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 through zinc-plated steel construction, extending service life in harsh industrial environments
• Enhanced vibration resistance with extra fine 1.25mm pitch threads that maintain secure fastening under dynamic loads
• Increased bearing surface area from the 25mm flange diameter, distributing clamping force more effectively
• Optimized thread engagement with Class 6g thread fit ensuring precise mating with corresponding nuts and threaded holes
• Easy installation and removal using standard external hex drive tools for efficient maintenance and assembly
• Regulatory compliance assurance meeting JIS B 1189 Type 2 standards and RoHS 3/REACH environmental directives

Professional Applications & Engineering Value

This M12 hex head screw delivers critical engineering advantages for industrial applications where vibration resistance and structural integrity are paramount. The Class 10.9 strength rating combined with Rockwell C32 hardness ensures reliable performance in heavy machinery, automotive assemblies, and construction equipment. The zinc-plated steel construction provides essential corrosion protection for outdoor or chemically exposed environments, while the flanged design eliminates the need for separate washers, streamlining assembly processes. The extra fine 1.25mm pitch metric thread offers superior resistance to loosening under vibration, making it ideal for precision equipment, motor mounts, and structural frameworks where safety and durability are non-negotiable.

Specification Summary & Compliance

This M12 x 1.25mm extra fine pitch screw features precise Class 6g thread fit tolerance and 40mm length with 30mm minimum thread length. Manufactured to JIS B 1189 Type 2 specifications with external hex drive and right-hand threading. The fastener demonstrates full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors while maintaining the high mechanical properties expected from Class 10.9 strength grade components.