S-91290A905 M16 x 260 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 in high-stress industrial applications, reducing the risk of fastener failure.
• Superior corrosion resistance from the black-oxide coating on alloy steel extends service life in harsh environments, minimizing maintenance needs.
• High hardness rating (Rockwell C37) provides excellent wear resistance, maintaining thread integrity and drive engagement over repeated use.
• Precision Class 5g6g thread fit offers consistent engagement and ease of assembly, reducing installation time and improving joint reliability.
• Partially threaded design concentrates clamping force where needed, enhancing stability in mechanical and structural assemblies.
• Standard hex drive (14mm) allows for high-torque installation with common tools, ensuring secure fastening without stripping.
• Compliance with DIN 912/ISO 4762 standards guarantees dimensional accuracy and interoperability, supporting global engineering specifications.

Professional Applications & Engineering Value

This M16x2mm coarse thread socket head cap screw is engineered to address critical challenges in demanding sectors like heavy machinery, automotive, and construction. The black-oxide alloy steel construction combats rust and oxidation, ideal for environments exposed to moisture or chemicals. With a Class 12.9 strength rating and 170,000 psi tensile strength, it withstands extreme loads and vibrations, preventing loosening in dynamic assemblies. The partially threaded metric screw design ensures optimal stress distribution, reducing the risk of fatigue failure. Its right-hand thread and standard hex drive simplify installation, while adherence to DIN 912/ISO 4762 ensures compatibility with international components, making it a reliable choice for precision engineering projects.

Specification Summary & Compliance

This fastener features a metric coarse thread (M16x2mm) with Class 5g6g thread fit for precise tolerance, ensuring smooth assembly and consistent performance. It meets DIN 912 (identical to ISO 4762) specifications for dimensional accuracy, including head diameter (24mm), head height (16mm), and length (260mm). The product is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming it is free from hazardous substances and safe for industrial use worldwide.