S-91390A194 M16 x 55 mm DIN 916, ISO 4029 Set Screws

Key Features & Benefits at a Glance

• Superior holding power with Rockwell C45 hardness alloy steel construction for maximum resistance to wear and deformation
• Precise thread engagement with Class 5g6g fit ensuring reliable fastening and vibration resistance in demanding applications
• Easy installation and removal via the 8mm hex drive, providing excellent torque transmission without the need for a protruding head
• Enhanced grip and security from the cup tip design, which bites into contact surfaces to prevent component slippage
• Broad industrial compatibility with coarse M16x2mm metric threads, facilitating quick assembly and disassembly
• Full regulatory compliance with RoHS 3 and REACH, making it safe for use in regulated environments and international markets
• Standardized dimensions per DIN 916 and ISO 4029, ensuring interchangeability and consistent performance across machinery and equipment

Professional Applications & Engineering Value

This M16 set screw is engineered to address critical challenges in industrial assembly and precision machinery. Its headless hex drive and alloy steel composition provide a low-profile, high-strength solution for securing rotating components like gears, pulleys, and collars onto shafts. The right-hand coarse thread and 2mm pitch enable rapid installation while maintaining strong clamping force, reducing assembly time and minimizing the risk of loosening under dynamic loads. The cup tip ensures positive contact, preventing axial movement in high-vibration environments such as motors, conveyors, and automotive systems. By meeting DIN 916/ISO 4029 standards, it guarantees dimensional accuracy and reliability, making it an ideal metric fastener for OEMs and maintenance teams seeking durable, compliant components.

Specification Summary & Compliance

This set screw features an M16x2mm coarse thread with Class 5g6g thread fit per ISO metric standards, ensuring precise tolerances for secure fastening. It is manufactured from alloy steel with a hardness of Rockwell C45 and includes an 8mm hex drive, 55mm length, and cup tip. Compliance is confirmed with DIN 916 and ISO 4029 specifications, along with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, supporting use in global industrial applications.