S-91390A171 M12 x 16 mm DIN 916, ISO 4029 Set Screws

Key Features & Benefits at a Glance

• Exceptional holding power thanks to high-strength alloy steel construction with Rockwell C45 hardness for reliable performance in demanding applications
• Precise thread engagement with Class 5g6g thread fit ensuring consistent, vibration-resistant fastening in coarse thread applications
• Optimized installation efficiency through 6mm hex drive design that provides excellent torque transmission without protruding head
• Superior surface contact with cup tip design that creates positive seating and prevents damage to mating surfaces
• Long-term reliability in industrial environments with material properties that resist wear and maintain clamping force
• Global compatibility with metric M12 x 1.75mm coarse thread specification meeting international standards for replacement and OEM applications
• Secure fastening solution with right-hand thread direction providing familiar installation and removal for maintenance personnel

Professional Applications & Engineering Value

This M12 set screw delivers critical engineering value in applications where space constraints and vibration resistance are paramount. The headless design with hex drive allows for flush mounting in tight spaces while maintaining excellent torque capability. Manufactured from alloy steel with Rockwell C45 hardness, this fastener provides superior strength-to-weight ratio and durability in mechanical assemblies, power transmission systems, and precision equipment. The cup tip configuration ensures maximum surface contact and minimal component damage during installation, making it ideal for securing gears, pulleys, and collars onto shafts. Meeting DIN 916/ISO 4029 standards, this metric set screw offers reliable performance in automotive, manufacturing, and industrial machinery applications where precise positioning and secure locking are essential for operational safety and equipment longevity.

Specification Summary & Compliance

This set screw features precise Class 5g6g thread fit according to ISO metric standards, ensuring proper clearance and engagement in coarse thread applications. The fastener maintains dimensional accuracy per DIN 916 ISO 4029 specifications with M12 x 1.75mm thread size, 16mm length, and 6mm hex drive. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental responsibility and safe use across various industrial sectors.