S-93339A121 M5 x 8 mm Set Screws

Key Features & Benefits at a Glance

• Maximum holding power through Rockwell C39 hardness for superior resistance to loosening under vibration
• Precise Class 6g thread fit ensures smooth installation and reliable engagement in mating components
• Durable ball tip design minimizes surface damage while providing excellent torque transmission
• Compact hex headless profile allows installation in confined spaces with standard 2.5mm hex tools
• Coarse 0.8mm pitch threading enables faster assembly and reduced cross-threading risks
• Industrial-grade alloy steel construction delivers exceptional strength and fatigue resistance
• RoHS 3 compliance meets environmental regulations for global manufacturing applications

Professional Applications & Engineering Value

This M5 set screw delivers critical engineering advantages in demanding industrial environments. The alloy steel composition combined with Rockwell C39 hardness provides exceptional shear strength and wear resistance, preventing failure in high-vibration applications. The ball tip design distributes contact pressure evenly, protecting precision-machined surfaces while maintaining secure positioning of gears, pulleys, and collars. The hex headless configuration with 2.5mm drive enables installation in space-constrained assemblies common in machinery, automotive, and automation equipment. The coarse metric thread with 0.8mm pitch ensures rapid assembly while the Class 6g thread fit guarantees consistent performance in high-volume production environments.

Specification Summary & Compliance

This metric set screw features M5x0.8mm coarse threading with Class 6g thread fit per ISO standards, ensuring precise dimensional accuracy. The 8mm length maintains strict manufacturing tolerances for reliable performance. The assembly complies with RoHS 3 (2015/863/EU) regulations under exemption 6(a) for lead as an alloying element in steel, making it suitable for regulated industrial applications worldwide.