S-91502A108 M3 x 18 mm DIN 912, ISO 4762 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Maximum durability with Class 12.9 strength rating and 170,000 psi tensile strength for reliable performance in high-stress applications
• Superior corrosion resistance through blue-dyed zinc plating that protects against rust and extends service life
• Precise installation control with 2.5mm hex drive socket head design for secure torque application and reduced stripping risk
• Excellent thread engagement with Class 5g6g thread fit ensuring consistent fastening performance and vibration resistance
• Broad compatibility with coarse M3 x 0.5mm thread pitch for quick assembly and disassembly in various industrial applications
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for safe use in regulated environments
• Standardized dimensions conforming to DIN 912/ISO 4762 specifications for reliable interchangeability and replacement

Professional Applications & Engineering Value

These Class 12.9 socket head cap screws deliver exceptional engineering value in demanding industrial environments where failure is not an option. The alloy steel construction with Rockwell C37 hardness provides outstanding resistance to shear and tensile forces, making them ideal for heavy machinery, automotive assemblies, and precision equipment. The blue-dyed zinc-plated surface treatment offers both corrosion protection and visual identification benefits in complex assemblies. With fully threaded M3 metric design and coarse 0.5mm pitch, these fasteners ensure rapid installation and secure clamping force distribution across the entire 18mm length. The hex drive socket head configuration allows for high-torque applications in confined spaces, solving accessibility challenges while maintaining structural integrity under extreme operating conditions.

Specification Summary & Compliance

This socket head cap screw features precise Class 5g6g thread fit tolerance according to ISO metric standards, ensuring consistent engagement and reliable performance. The manufacturing strictly adheres to DIN 912/ISO 4762 specifications for dimensional accuracy and mechanical properties. Regulatory compliance includes full conformity with RoHS 3 (2015/863/EU) restrictions on hazardous substances and REACH (EC 1907/2006) regulations for chemical safety. The 18mm length with fully threaded design provides uniform stress distribution, while the right-hand thread direction and standard socket head profile maintain compatibility with existing industrial fastener systems and tooling.