S-91390A088 M1.6 x 4 mm DIN 916, ISO 4029 Set Screws

Key Features & Benefits at a Glance

• Exceptional holding power with a cup point tip that bites into surfaces, preventing component slippage and ensuring reliable positioning in assemblies.
• Superior strength and durability from high-grade alloy steel and a Rockwell C45 hardness, offering excellent resistance to wear and deformation under load.
• Secure and efficient installation with a 0.7 mm hex drive, allowing for high torque application in confined spaces without the risk of cam-out.
• Precision thread engagement with a Class 5g6g fit and coarse M1.6 x 0.35 mm thread, enabling quick assembly and robust fastening in a wide range of materials.
• Guaranteed quality and interchangeability by conforming to DIN 916 and ISO 4029 standards, ensuring consistent performance and compatibility in global engineering projects.
• Safe for sensitive applications with full compliance to RoHS 3 and REACH environmental regulations, making it suitable for electronics and other regulated industries.
• Compact and versatile design as a headless screw with a 4 mm length, ideal for space-constrained applications where a flush surface is required.

Professional Applications & Engineering Value

This M1.6 set screw is engineered to solve critical challenges in precision assemblies, such as securing gears, pulleys, and collars on shafts. The alloy steel construction and Rockwell C45 hardness provide the necessary strength to resist vibrational loosening and maintain clamp load in dynamic environments. Its cup point design concentrates force for a firm, non-slip grip, while the hex drive ensures reliable torque transmission without stripping. As a headless screw with a metric coarse thread, it offers a low-profile solution for machinery, automotive, and electronic applications, enhancing assembly integrity and reducing maintenance needs.

Specification Summary & Compliance

This set screw features an M1.6 x 0.35 mm coarse thread with a Class 5g6g thread fit per ISO metric standards, ensuring dimensional accuracy and reliable performance. It is manufactured to meet DIN 916 and ISO 4029 specifications for set screws with hex socket and cup point. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its safety for use in various industrial sectors.