S-91390A676 M16 x 20 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 for secure, vibration-resistant fastening in demanding applications.
• Superior strength and durability provided by Alloy Steel construction and a Rockwell C45 hardness rating, ensuring long-term performance under stress.
• Precise and reliable fit thanks to the Class 5g6g thread fit and fine 1.5mm pitch, offering excellent engagement and reduced risk of loosening.
• Streamlined installation and removal with an 8mm hex drive, allowing for high torque application in confined, headless designs.
• Guaranteed quality and interchangeability through compliance with DIN 916 and ISO 4029 standards, ensuring consistent dimensions and performance.
• Safe for regulated industries as it meets RoHS 3 and REACH environmental compliance, making it suitable for various global markets.
• Versatile right-hand metric thread (M16x1.5mm) designed for easy integration into a wide range of industrial machinery and assemblies.

Professional Applications & Engineering Value

Engineered for precision, this M16 set screw solves critical challenges in industrial fastening where space is limited and reliability is non-negotiable. The headless design and 8mm hex drive enable flush mounting and high-torque installation in compact assemblies, preventing protrusion and interference. Made from alloy steel and hardened to Rockwell C45, it resists wear and deformation under cyclic loads, making it ideal for securing gears, pulleys, and collars on shafts. The fine thread with a 1.5mm pitch and Class 5g6g tolerance ensures a tight, precise fit, minimizing backlash in precision applications. Coupled with the cup point that creates a strong grip, this screw is a trusted solution for machinery, automotive, and equipment manufacturing, delivering consistent performance and reducing maintenance needs.

Specification Summary & Compliance

This set screw adheres to strict dimensional and performance criteria, including a metric M16x1.5mm fine thread with Class 5g6g thread fit for precise ISO-compliant tolerances. It is manufactured according to DIN 916 and ISO 4029 specifications, ensuring uniformity and reliability. 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 without hazardous substances.