S-98625A528 M3 x 20 mm Set Screws

Key Features & Benefits at a Glance

• Superior vibration resistance with ultra-fine 0.25 mm pitch threads for maximum holding power in high-stress applications
• Excellent corrosion resistance provided by 303 stainless steel construction, ideal for harsh industrial environments
• Precise thread engagement with Class 6g thread fit ensuring reliable, consistent fastening performance
• Enhanced tip durability through alloy steel ball tip design that maintains integrity during repeated adjustments
• Space-saving installation with headless design allowing flush mounting in confined spaces
• Secure torque transmission via 1.5mm hex drive that prevents tool slippage and damage
• Environmental compliance assurance meeting RoHS 3 and REACH standards for global manufacturing requirements

Professional Applications & Engineering Value

This ultra-fine thread M3 set screw delivers exceptional engineering value in precision assemblies where vibration resistance and minimal adjustment are critical. The 0.25 mm pitch metric thread provides significantly increased thread contact area compared to standard pitches, effectively preventing loosening in dynamic applications such as robotics, optical equipment, and precision instruments. Manufactured from 303 stainless steel, this fastener maintains corrosion resistance while offering excellent machinability for high-volume production environments. The combination of Class 6g thread fit and ball tip design ensures precise positioning and reliable clamping force without damaging shaft surfaces. The 1.5mm hex drive accommodates compact tools while delivering sufficient torque for secure fastening in space-constrained assemblies commonly found in electronics, medical devices, and automotive components.

Specification Summary & Compliance

This precision metric set screw features M3 x 0.25 mm ultra-fine threading with Class 6g thread fit per ISO metric standards, ensuring precise dimensional accuracy and interchangeability. The 20mm length provides versatile application coverage while maintaining structural integrity. Manufacturing complies with environmental regulations including RoHS 3 (2015/863/EU) with exemption 6(c) and REACH (EC 1907/2006) compliance, meeting international standards for hazardous substance restrictions in industrial components.