S-91290A840 M16 x 80 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 applications, reducing the risk of fastener failure.
• Superior corrosion resistance from the black-oxide coating extends service life in harsh industrial environments, minimizing maintenance needs.
• High hardness rating (Rockwell C37) provides excellent wear resistance, maintaining thread integrity and drive engagement over repeated use.
• Precise Class 5g6g thread fit guarantees smooth assembly and secure fastening, improving installation efficiency and joint reliability.
• Partially threaded design allows for optimal clamping force distribution, ideal for applications requiring precise unthreaded shank sections.
• Standard hex drive (14mm) enables easy installation with common tools, reducing assembly time and tooling complexity.
• Compliance with DIN 912/ISO 4762 ensures dimensional accuracy and interchangeability, supporting global engineering standards.

Professional Applications & Engineering Value

This M16 socket head cap screw is engineered to address critical challenges in heavy-duty industrial settings. The black-oxide alloy steel construction offers enhanced corrosion resistance, making it suitable for environments exposed to moisture, chemicals, or outdoor conditions. With a coarse 2mm pitch thread and Class 12.9 strength rating, it provides superior vibration resistance and load-bearing capacity in machinery, automotive assemblies, and structural frameworks. The partially threaded rod type ensures that the unthreaded portion absorbs shear forces, while the threaded section delivers consistent clamping. Ideal for high-stress applications like construction equipment, presses, and conveyor systems, this screw combines durability with ease of installation using standard hex drive tools, reducing downtime and maintenance costs.

Specification Summary & Compliance

This product features a metric M16 x 2mm coarse thread with a Class 5g6g thread fit for precise tolerance, ensuring compatibility and ease of assembly. It adheres to DIN 912 and ISO 4762 standards for dimensional accuracy and performance. Additionally, it is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmental safety and industrial health standards.