S-90251A163 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 under dynamic loads, maintaining assembly integrity in demanding environments.
• Superior corrosion resistance from 18-8 stainless steel ensures long-term reliability in humid or chemically exposed industrial settings.
• High-strength construction with Rockwell B80 hardness provides excellent durability and resistance to wear and deformation.
• Precise Class 6g thread fit guarantees smooth installation and secure fastening, reducing the risk of cross-threading and assembly errors.
• Compact headless design allows for flush mounting in tight spaces, ideal for applications where protrusion is not permissible.
• Wide temperature tolerance of the nylon patch (-50° to 250°F) ensures consistent locking performance across varied operating conditions.
• Standard-compliant quality meeting DIN 916/ISO 4029 specifications ensures interchangeability and reliability in global engineering projects.

Professional Applications & Engineering Value

This M5 hex socket set screw is engineered to address critical challenges in precision assemblies, such as securing collars, gears, and pulleys on shafts without head interference. The 18-8 stainless steel material offers excellent resistance to rust and oxidation, making it suitable for harsh environments like marine, automotive, and food processing equipment. The integrated nylon patch thread locker provides reliable vibration resistance, eliminating the need for additional locking washers or adhesives, which streamlines installation and reduces maintenance. With a coarse thread pitch of 0.8mm and Class 6g fit, it ensures quick, accurate engagement in metric threaded applications, enhancing assembly efficiency and reducing downtime in high-volume production lines.

Specification Summary & Compliance

This set screw features precise metric thread specifications with M5 x 0.8mm coarse spacing and Class 6g tolerance for consistent fit. It complies with DIN 916 and ISO 4029 manufacturing standards, ensuring dimensional accuracy and performance reliability. Additionally, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, supporting safe and sustainable industrial use.