S-91290A910 M16 x 300 mm DIN 912, ISO 4762 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 170,000 psi ensures reliable performance under extreme loads, reducing the risk of fastener failure in critical applications.
• Superior corrosion resistance from the black-oxide finish on alloy steel prolongs service life in harsh industrial environments, minimizing maintenance needs.
• High hardness rating (Rockwell C37) provides excellent wear resistance, maintaining thread integrity and drive features through repeated use.
• Precise hex drive compatibility with 14mm tools offers secure, slip-free installation and removal, enhancing assembly efficiency and safety.
• Optimized thread design with coarse 2mm pitch and Class 5g6g fit enables quick assembly and strong holding power in various materials.
• Partially threaded shank allows for controlled clamping force and precise positioning in structural and machinery applications.
• International standard compliance (DIN 912/ISO 4762) ensures interchangeability and reliable performance in global engineering projects.

Professional Applications & Engineering Value

This M16 socket head cap screw delivers critical engineering value in heavy-duty applications where failure is not an option. The black-oxide alloy steel construction provides superior corrosion protection while maintaining the Class 12.9 strength rating, making it ideal for machinery, automotive assemblies, and structural frameworks exposed to demanding conditions. The partially threaded design with coarse metric thread ensures rapid installation and secure fastening in steel frames, equipment bases, and industrial fixtures. With its 14mm hex drive and standardized socket head profile, technicians can achieve proper torque application without stripping, while the 300mm length accommodates deep-set applications requiring extended reach and robust clamping capability.

Specification Summary & Compliance

This fastener maintains Class 5g6g thread fit tolerance according to metric standards, ensuring precise engagement and consistent performance. Manufacturing complies with DIN 912/ISO 4762 specifications for dimensional accuracy and mechanical properties. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, meeting current environmental regulations for hazardous substances. The right-hand thread direction and 2mm coarse pitch provide industry-standard compatibility, while the 44mm minimum thread length guarantees sufficient engagement for secure connections.