S-91290A287 M42 x 100 mm DIN 912, ISO 4762 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with Class 12.9 strength rating and 170,000 psi tensile strength for reliable performance in high-stress assemblies.
• Superior corrosion resistance and reduced light reflection due to the black-oxide finish on alloy steel, extending service life in harsh environments.
• Precise torque application and secure fastening enabled by the 32 mm hex drive and standard socket head profile, minimizing tool slippage.
• Optimized for quick installation and high vibration resistance with a fully threaded M42 x 4.5 mm coarse pitch right-hand design.
• Consistent dimensional accuracy and interchangeability ensured by compliance with DIN 912/ISO 4762 standards and Class 5g6g thread fit.
• Enhanced durability under repetitive loads thanks to Rockwell C37 hardness, reducing wear and maintenance needs.
• Safe for regulated industries with RoHS 3 and REACH compliance, meeting environmental and health standards.

Professional Applications & Engineering Value

This M42 socket head cap screw is engineered to address critical challenges in heavy-duty industrial applications, such as machinery construction, automotive assemblies, and structural frameworks. The black-oxide alloy steel construction provides a protective layer that combats corrosion and reduces galling, which is essential in environments exposed to moisture or chemicals. With a fully threaded metric coarse pitch design, it ensures rapid installation and maintains clamping force in high-vibration settings, preventing loosening over time. The Class 12.9 strength and high tensile capacity make it ideal for demanding uses where failure is not an option, offering engineers a reliable fastener that enhances equipment longevity and reduces downtime.

Specification Summary & Compliance

This product adheres to precise metric thread specifications, including M42 size with 4.5 mm coarse pitch and Class 5g6g thread fit for consistent engagement. It meets DIN 912 and ISO 4762 standards, ensuring dimensional accuracy and performance reliability. Additionally, it complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental responsibility in industrial supply chains.