S-91390A666 M12 x 45 mm DIN 916, ISO 4029 Set Screws

Key Features & Benefits at a Glance

• Superior holding power with high-strength alloy steel construction and Rockwell C45 hardness for maximum durability in demanding applications
• Precise positioning control through extra fine 1.25mm pitch threads that provide finer adjustment capabilities
• Exceptional thread accuracy with Class 5g6g thread fit ensuring reliable engagement and consistent performance
• Space-saving installation featuring a headless hex drive design that allows flush mounting in confined spaces
• Enhanced grip and security with cup tip design that creates positive seating and prevents component movement
• Industry-standard compatibility meeting DIN 916 and ISO 4029 specifications for reliable interchangeability
• Environmental compliance assurance with full RoHS 3 and REACH compliance for global manufacturing applications

Professional Applications & Engineering Value

This M12 extra fine thread set screw delivers exceptional engineering value in precision assembly applications where vibration resistance and positional accuracy are critical. The alloy steel construction with Rockwell C45 hardness provides the necessary strength to withstand high torque requirements while maintaining dimensional stability under load. The headless hex drive design with 6mm drive size enables installation in space-constrained environments while the cup tip creates concentrated contact pressure for secure component locking. Particularly valuable in machinery, automotive, and precision equipment applications, this metric set screw solves common challenges of component slippage and positional drift through its Class 5g6g thread fit and extra fine pitch, which allows for minute adjustments and superior clamping force distribution.

Specification Summary & Compliance

This precision fastener features M12 x 1.25mm extra fine metric threads with Class 5g6g thread fit tolerance for superior dimensional accuracy. Manufactured to DIN 916 and ISO 4029 standards, the 45mm length headless set screw with 6mm hex drive ensures consistent performance across industrial applications. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making it suitable for global manufacturing requirements while delivering reliable mechanical performance in demanding assembly environments.