S-91385A426 M8 x 16 mm DIN 916, ISO 4029 Set Screws

Key Features & Benefits at a Glance

• Secure vibration-resistant locking with nylon patch thread locker that maintains performance across extreme temperatures from -50° to 250°F
• Exceptional durability and strength from Rockwell C45 hardened black-oxide alloy steel construction
• Precise thread engagement with Class 5g6g thread fit ensuring reliable fastening in demanding applications
• Optimized for industrial environments with coarse M8 x 1.25mm thread profile providing superior holding power
• Space-saving headless design with hex drive for flush installation where protruding fasteners aren't feasible
• Enhanced grip and positioning thanks to the cup tip design that digs into mating surfaces
• Compliance with international standards including DIN 916/ISO 4029 specifications for guaranteed interoperability

Professional Applications & Engineering Value

This M8 set screw with nylon patch thread locker addresses critical vibration-induced loosening in industrial machinery, automotive components, and precision equipment. The black-oxide alloy steel construction combined with Rockwell C45 hardness provides exceptional resistance to wear and corrosion in harsh operating environments. The coarse thread profile (M8 x 1.25mm) ensures rapid installation and maximum clamping force, while the hex headless design allows for flush mounting in space-constrained applications. The cup tip concentrates pressure for secure positioning of gears, pulleys, and collars on shafts, preventing slippage under high torque loads. Engineered to DIN 916/ISO 4029 standards, this vibration-resistant fastener delivers reliable performance in assembly lines, power transmission systems, and heavy equipment where long-term reliability is paramount.

Specification Summary & Compliance

This metric set screw features precise Class 5g6g thread fit tolerance according to ISO standards, ensuring consistent performance across industrial applications. Manufacturing complies with DIN 916 ISO 4029 specifications for dimensional accuracy and mechanical properties. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting current environmental regulations for hazardous substances. The combination of M8 x 1.25mm coarse thread with 16mm length provides optimal engagement for secure fastening in various industrial settings.