S-98625A565 M3 x 20 mm Set Screws

Key Features & Benefits at a Glance

• Exceptional holding power with ultra-fine 0.2mm pitch threads for maximum resistance to vibration and loosening in precision assemblies
• Superior corrosion resistance from 303 stainless steel construction, ideal for demanding industrial environments
• Precise thread engagement with Class 6g thread fit ensuring consistent, reliable fastening in metric applications
• Secure installation and removal using the 1.5mm hex drive, providing excellent torque transmission in confined spaces
• Reduced surface damage thanks to the ball tip design with durable alloy steel, protecting sensitive components during fastening
• Space-saving headless design allowing for flush mounting where protruding fastener heads aren't feasible
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for use in regulated industries

Professional Applications & Engineering Value

This M3 ultra fine pitch set screw delivers critical engineering solutions where standard fasteners fall short. The 303 stainless steel composition provides excellent machinability and corrosion resistance for precision instruments, medical devices, and optical equipment. The 0.2mm thread pitch creates significantly more thread contact points than standard pitches, dramatically increasing resistance to vibrational loosening in sensitive mechanisms. The combination of hex drive and headless design enables installation in extremely confined spaces while maintaining high torque capability. The ball tip with specialized alloy steel minimizes galling and surface deformation when securing against shafts or in precision grooves, making it ideal for positioning components in assemblies requiring minute adjustments and reliable long-term performance.

Specification Summary & Compliance

This precision fastener features M3x0.2mm ultra fine metric threads with Class 6g tolerance for consistent fitment, 20mm length, and 1.5mm hex drive. Manufacturing complies with RoHS 3 (2015/863/EU) with exemption 6(c) for lead in copper alloy and REACH (EC 1907/2006) compliance as of 06/14/2023. The right-hand thread direction and ball tip configuration meet industry standards for set screw applications requiring precise component positioning and secure fastening.