S-91390A116 M4 x 16 mm DIN 916, ISO 4029 Set Screws

Key Features & Benefits at a Glance

• Exceptional durability and wear resistance thanks to high-strength alloy steel construction with Rockwell C45 hardness, ensuring long service life in demanding applications.
• Secure and reliable fastening is achieved with the coarse 0.7mm pitch thread, designed for quick assembly and reduced risk of cross-threading.
• High torque transmission and tool compatibility from the 2 mm hex drive, providing a positive grip and minimizing the risk of tool slippage and head stripping.
• Superior holding power and vibration resistance with the cup tip design, which bites into the contact surface to prevent loosening under dynamic loads.
• Precise thread fit and interchangeability guaranteed by the Class 5g6g tolerance, ensuring consistent performance and easy replacement in metric assemblies.
• Streamlined and space-saving installation due to the headless design, making it ideal for applications where a flush surface is required.
• Guaranteed material safety and environmental compliance as it meets RoHS 3 and REACH regulations, making it suitable for use in regulated industries.

Professional Applications & Engineering Value

This M4 set screw is engineered to solve critical fastening challenges in industrial and engineering contexts. Manufactured from high-strength alloy steel and heat-treated to a Rockwell C45 hardness, it provides excellent resistance to shear forces and fatigue, making it ideal for securing components in machinery, automotive assemblies, and precision equipment. The hex drive and coarse thread (M4 x 0.7mm) enable quick and secure installation, even in hard-to-reach areas, while the cup tip ensures a firm grip on the shaft or component, preventing rotational slip and maintaining alignment under vibration. Its compliance with DIN 916 / ISO 4029 standards ensures dimensional accuracy and reliability, providing engineers with a trusted solution for permanent or semi-permanent fastening needs.

Specification Summary & Compliance

This metric set screw features an M4 x 0.7mm coarse thread with a Class 5g6g thread fit for precise dimensional tolerance. It is manufactured in accordance with the DIN 916 and ISO 4029 specifications, ensuring consistent quality and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety for use in various industrial applications without hazardous substances.