S-91385A212 M5 x 6 mm DIN 916, ISO 4029 Set Screws

Key Features & Benefits at a Glance

• Vibration-resistant locking with nylon patch thread locker prevents loosening in dynamic applications
• Superior corrosion protection from black-oxide coating extends service life in harsh environments
• Precision thread fit (Class 5g6g) ensures consistent engagement and reliable fastening performance
• High-strength alloy steel construction with Rockwell C45 hardness withstands heavy mechanical loads
• Wide temperature tolerance (-50° to 250°F) maintains locking performance across extreme conditions
• Headless cup tip design provides positive seating and minimal protrusion in assembled components
• Standardized metric dimensions (DIN 916/ISO 4029) guarantee interchangeability and global compatibility

Professional Applications & Engineering Value

This M5 set screw delivers critical vibration resistance in industrial machinery, automotive assemblies, and precision equipment where secure fastening is paramount. The nylon patch thread locker eliminates the need for additional locking components, reducing assembly time while providing reliable performance from -50° to 250°F. Engineered with Class 5g6g thread fit and black-oxide alloy steel construction, it maintains dimensional stability under stress while resisting corrosion. The headless design with cup tip ensures flush mounting in pulleys, gears, and collars, making it ideal for space-constrained applications requiring precise component positioning and minimal protrusion.

Specification Summary & Compliance

Manufactured to DIN 916/ISO 4029 standards with Class 5g6g thread tolerance for precision fit. Features M5x0.8mm coarse thread with right-hand direction and 2.5mm hex drive. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global markets.