S-91385A420 M6 x 25 mm DIN 916, ISO 4029 Set Screws

Key Features & Benefits at a Glance

• Vibration-resistant locking with permanent nylon patch thread locker that maintains secure fastening in temperatures from -50° to 250° F
• Enhanced durability and corrosion resistance from black-oxide alloy steel construction with Rockwell C45 hardness for long service life
• Precise thread engagement with Class 5g6g thread fit and coarse 1 mm pitch for reliable installation and holding power
• Easy installation in confined spaces using the 3 mm hex drive and headless design for flush mounting
• Secure component positioning with cup tip that digs into surfaces to prevent slippage under load
• Global compliance assurance meeting DIN 916/ISO 4029 standards, RoHS 3, and REACH for safe industrial use
• Right-hand thread direction for standard assembly procedures and compatibility with common tools

Professional Applications & Engineering Value

This M6 set screw delivers reliable fastening in demanding industrial environments where vibration loosening is a critical concern. The black-oxide alloy steel construction provides excellent corrosion resistance while maintaining Rockwell C45 hardness for superior strength. The permanent nylon patch thread locker creates a chemical bond that withstands temperature fluctuations from -50° to 250° F, eliminating the need for additional locking mechanisms. The headless design with hex drive allows installation in tight spaces where traditional screw heads won't fit, while the cup tip ensures positive seating on shafts and components. Engineered to DIN 916/ISO 4029 standards with Class 5g6g thread fit, this metric fastener provides precise dimensional accuracy for machinery, automotive, and equipment manufacturing applications requiring secure axial positioning.

Specification Summary & Compliance

This set screw features M6 x 1 mm coarse thread spacing with Class 5g6g thread fit per metric standards, ensuring dimensional precision and compatibility. The 25 mm length and 3 mm hex drive provide consistent installation performance. Manufacturing complies with DIN 916 ISO 4029 specifications for quality assurance. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting international environmental and safety regulations for industrial components.