S-91390A582 M30 x 25 mm DIN 916, ISO 4029 Set Screws

Key Features & Benefits at a Glance

• Exceptional holding power with cup point tip design for superior grip and resistance to vibration loosening in demanding applications.
• High-strength alloy steel construction with Rockwell C45 hardness ensures excellent durability and resistance to wear and shear forces.
• Precision Class 5g6g thread fit provides reliable, consistent engagement and ease of assembly, reducing the risk of cross-threading.
• Robust 14mm hex drive allows for high torque application with standard tools, facilitating secure installation and removal.
• Heavy-duty M30x3.5mm coarse thread offers fast installation and strong holding capability in a wide range of materials.
• Compliance with DIN 916 (ISO 4029) standard guarantees dimensional accuracy and interchangeability for global engineering projects.
• Environmentally responsible manufacturing with full compliance to RoHS 3 and REACH regulations, ensuring safety and sustainability.

Professional Applications & Engineering Value

This M30 set screw is engineered to solve critical challenges in heavy-duty industrial assembly, where vibration resistance and permanent positioning are paramount. The alloy steel material, hardened to Rockwell C45, provides the necessary shear strength and fatigue resistance for high-stress applications such as securing gears, pulleys, and collars on shafts. The cup point tip bites into the contact surface, creating a firm lock that prevents components from slipping under dynamic loads. Its metric coarse thread with a 3.5mm pitch ensures quick installation and robust holding in both soft and hard materials, making it ideal for machinery, automotive, and manufacturing equipment where reliability cannot be compromised. The headless design and hex drive allow for flush mounting in confined spaces, offering a clean and secure fastening solution.

Specification Summary & Compliance

This set screw conforms to DIN 916 (ISO 4029) specifications, ensuring precise dimensional tolerances for the M30x3.5mm thread with a Class 5g6g thread fit. The manufacturing process adheres to strict quality controls for thread form, length (25mm), and drive size (14mm hex). It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming the absence of hazardous substances and supporting sustainable procurement practices in industrial supply chains.