S-91390A550 M4 x 35 mm DIN 916, ISO 4029 Set Screws

Key Features & Benefits at a Glance

• Maximum torque transmission with a 2 mm hex drive design, preventing tool slippage and ensuring secure installation in confined spaces.
• Superior material strength and durability from alloy steel with Rockwell C45 hardness, offering excellent resistance to wear and deformation under high stress.
• Reliable, vibration-resistant fastening due to the cup tip design, which digs into surfaces to prevent loosening in dynamic applications.
• Precise and consistent fit with Class 5g6g thread tolerance, ensuring smooth assembly and reducing the risk of cross-threading.
• Broad industrial compatibility with a coarse M4 x 0.7 mm right-hand metric thread, facilitating quick installation and interchangeability.
• Space-saving headless construction ideal for applications where a flush surface or minimal protrusion is required.
• Compliance with international standards including DIN 916/ISO 4029, RoHS 3, and REACH, guaranteeing safety and regulatory adherence for global use.

Professional Applications & Engineering Value

This alloy steel set screw is engineered to address critical challenges in precision machinery, automotive assemblies, and industrial equipment where reliable, headless fastening is essential. The M4 coarse thread and Class 5g6g thread fit ensure rapid, accurate installation, minimizing assembly time while maintaining integrity under vibrational loads. With a Rockwell C45 hardness and hex drive, it delivers high torque resistance, preventing stripping and ensuring long-term performance in demanding environments. The cup tip securely bites into components, providing anti-rotation benefits ideal for securing gears, pulleys, and shafts. Fully compliant with DIN 916/ISO 4029 standards, it offers a trusted solution for OEMs and maintenance teams seeking durability and regulatory compliance.

Specification Summary & Compliance

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