S-99642A238 M12 x 25 mm DIN 916, ISO 4029 Set Screws

Key Features & Benefits at a Glance

• Superior holding power with cup point design that bites into mating surfaces to prevent loosening under vibration and load
• Exceptional durability from alloy steel construction and Rockwell C45 hardness, providing excellent resistance to wear and deformation
• Precise installation with 6mm hex drive allowing high torque application without head protrusion in space-constrained assemblies
• Reliable thread engagement with Class 5g6g fine thread fit ensuring consistent clamping force and vibration resistance
• Industry-standard compatibility meeting DIN 916/ISO 4029 specifications for seamless integration into existing metric fastener systems
• Environmental compliance with RoHS 3 and REACH regulations for use in regulated industries and international markets
• Optimized for fine adjustments with M12 x 1.5mm fine pitch threads providing greater control in precision positioning applications

Professional Applications & Engineering Value

These alloy steel set screws deliver critical performance in demanding industrial applications where vibration resistance and permanent positioning are paramount. The cup point design creates a permanent indentation in shaft components, preventing rotational slippage in power transmission systems, gear assemblies, and precision machinery. Manufactured to DIN 916/ISO 4029 standards with Class 5g6g thread fit, these M12 fine thread screws maintain consistent clamping force in high-stress environments. The headless configuration with 6mm hex drive enables flush mounting in confined spaces while allowing sufficient torque application. With Rockwell C45 hardness, these fasteners withstand repeated adjustments without thread deformation, making them ideal for manufacturing equipment, automotive components, and industrial machinery requiring reliable shaft securing solutions.

Specification Summary & Compliance

This metric set screw features M12 x 1.5mm fine pitch threads with Class 5g6g thread fit per ISO metric standards, ensuring precise dimensional accuracy and interchangeability. Manufacturing complies with DIN 916 ISO 4029 specifications for dimensional and mechanical properties. The fastener meets RoHS 3 (2015/863/EU) compliance for restricted substance control and REACH (EC 1907/2006) compliance for chemical substance management, making it suitable for regulated industries and international supply chains.