S-98625A581 M3 x 39 mm Set Screws

Key Features & Benefits at a Glance

• Superior holding power with ultra fine 0.2 mm thread pitch for maximum resistance to vibration and loosening in precision assemblies
• Excellent corrosion resistance provided by 303 stainless steel construction, ideal for harsh industrial environments
• Precise thread engagement ensured by Class 6g thread fit, delivering reliable performance in critical applications
• Secure installation and removal with 1.5 mm hex drive in headless design, saving space and preventing tampering
• Enhanced grip and positioning from alloy steel ball tip, reducing surface damage while maintaining firm contact
• Broad industrial compatibility with metric M3x0.2 ultra fine threading, meeting demanding engineering specifications
• Environmental compliance assurance through RoHS 3 and REACH adherence, supporting sustainable manufacturing practices

Professional Applications & Engineering Value

This M3 ultra fine thread set screw addresses critical challenges in precision engineering where standard fasteners fail. The 303 stainless steel material offers exceptional corrosion resistance for machinery exposed to moisture, chemicals, or outdoor conditions, while the Class 6g thread fit ensures tight tolerances that prevent backlash in high-vibration environments like automotive assemblies or robotic systems. The headless hex drive design with 1.5 mm drive size allows flush mounting in confined spaces, making it ideal for securing gears, pulleys, and shafts where protrusions are unacceptable. Combined with the alloy steel ball tip, it provides concentrated contact pressure without marring surfaces, delivering reliable clamping force in industrial fasteners for medical devices, aerospace components, and precision instruments requiring repeated adjustments.

Specification Summary & Compliance

This metric set screw features M3x0.2 ultra fine threading with Class 6g thread fit per ISO standards, ensuring dimensional accuracy for precise assemblies. The 39 mm length and 1.5 mm hex drive provide consistent installation torque. Manufacturing complies with RoHS 3 (2015/863/EU) with exemption 6(c) for lead in copper alloy and REACH (EC 1907/2006) regulations, confirming environmental safety for global industrial applications.