S-91390A679 M16 x 35 mm DIN 916, ISO 4029 Set Screws

Key Features & Benefits at a Glance

• Superior holding power with fine 1.5mm pitch threads for maximum resistance to vibration and loosening in dynamic applications
• Exceptional durability thanks to alloy steel construction and Rockwell C45 hardness, ensuring long service life under high stress
• Precise thread fit with Class 5g6g tolerance for reliable engagement and consistent clamping force in precision assemblies
• Secure installation via 8mm hex drive, providing high torque transmission without head protrusion in space-constrained designs
• Enhanced grip from the cup tip design, which bites into contact surfaces to prevent component slippage
• Global compliance with DIN 916/ISO 4029 standards, ensuring interchangeability and quality in international projects
• Environmental safety through RoHS 3 and REACH compliance, meeting stringent regulatory requirements for industrial use

Professional Applications & Engineering Value

This M16 set screw is engineered to address critical challenges in industrial fastening where vibration resistance and space efficiency are paramount. The alloy steel material, combined with Rockwell C45 hardness, provides excellent shear strength and wear resistance, preventing failure in high-torque applications like machinery shafts, gear assemblies, and precision tooling. The fine pitch metric thread (1.5mm) offers more threads per unit length, enhancing grip on hardened components and reducing the risk of loosening under cyclic loads. Its headless design with 8mm hex drive allows flush mounting in confined spaces, while the cup tip ensures positive seating on curved or flat surfaces. Ideal for automotive, aerospace, and heavy equipment sectors, this screw delivers reliable performance where precision fasteners must withstand extreme operational demands.

Specification Summary & Compliance

This set screw features M16 x 1.5mm fine pitch threads with Class 5g6g tolerance per ISO metric standards, ensuring precise fit and consistent performance. It complies with DIN 916 and ISO 4029 manufacturing specifications for dimensional accuracy and mechanical properties. The product is fully RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, adhering to environmental and safety regulations for industrial components.