S-91390A552 M6 x 50 mm DIN 916, ISO 4029 Set Screws

Key Features & Benefits at a Glance

• Superior holding power with the cup point design that bites into surfaces, preventing loosening under vibration and shock loads.
• High durability and wear resistance thanks to the Alloy Steel construction and Rockwell C45 hardness, ensuring a long service life in demanding environments.
• Precise and reliable fastening is achieved with the Class 5g6g thread fit, offering excellent dimensional accuracy for consistent performance.
• Easy installation and high torque application are enabled by the 3 mm hex drive and headless design, ideal for confined spaces.
• Broad industrial compatibility with the standard M6 x 1 mm coarse metric thread, making it a versatile component for various machinery and equipment.
• Guaranteed quality and safety through compliance with DIN 916/ISO 4029 standards, ensuring interchangeability and reliability.
• Environmentally responsible manufacturing as it is RoHS 3 and REACH compliant, meeting strict international regulations for hazardous substances.

Professional Applications & Engineering Value

This M6 set screw is engineered to solve critical fastening challenges in industrial settings. The alloy steel material, hardened to Rockwell C45, provides the necessary strength to resist shear forces and deformation. The cup point tip is a key feature, creating a permanent indentation in the shaft for a secure, non-slip grip that is essential for assemblies subject to constant vibration or rotational stress. Its headless design and hex drive allow for flush mounting and easy access with a standard Allen key, making it perfect for securing collars, gears, and pulleys onto shafts in machinery, automotive, and automation systems. This combination of a robust metric thread and precise engineering delivers a reliable, long-term fastening solution that minimizes maintenance and downtime.

Specification Summary & Compliance

This set screw features an M6 x 1 mm coarse metric thread with a Class 5g6g thread fit, ensuring high dimensional accuracy and interchangeability. It is manufactured to conform to the DIN 916/ISO 4029 standard. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations.