S-91390A669 M12 x 30 mm DIN 916, ISO 4029 Set Screws

Key Features & Benefits at a Glance

• Exceptional holding power through fine 1.5mm pitch threads for superior resistance to loosening under vibration and dynamic loads
• High-strength alloy steel construction with Rockwell C45 hardness ensures excellent durability and resistance to wear in demanding industrial environments
• Precise Class 5g6g thread fit guarantees reliable engagement and consistent clamping force for secure component fastening
• Hex drive headless design allows for flush installation in confined spaces and provides high torque transmission with a 6mm hex key
• Cup point tip bites firmly into the shaft or component surface, preventing slippage and ensuring positive rotational locking
• Full compliance with DIN 916 / ISO 4029 standards ensures dimensional accuracy, interchangeability, and reliable performance in engineering applications
• Environmentally responsible manufacturing with RoHS 3 and REACH compliance for safe use in regulated industries

Professional Applications & Engineering Value

This M12 set screw is engineered to solve critical challenges in power transmission and motion control systems. The alloy steel material and Rockwell C45 hardness provide the necessary strength to withstand high shear forces and repetitive stresses in pulleys, gears, and collars. The fine metric thread with 1.5mm pitch and Class 5g6g fit offers superior resistance to vibrational loosening compared to coarse threads, making it ideal for industrial machinery, automotive assemblies, and precision equipment. The headless, hex drive design enables installation in space-constrained applications while the cup tip creates a strong biting action for secure shaft positioning, eliminating the need for additional locking mechanisms and reducing maintenance downtime.

Specification Summary & Compliance

This set screw features a Metric M12 x 1.5mm fine pitch thread with a Class 5g6g thread fit ensuring precise dimensional tolerances per ISO 4029 / DIN 916 standards. The manufacturing process adheres to these specifications for consistent quality and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for use in environmentally conscious industrial applications.