S-90418A103 M3 x 4 mm ASME B18.3.6M Set Screws

Key Features & Benefits at a Glance

• Superior damage prevention with a soft brass tip that protects mating surfaces from scratches and deformation during installation
• Excellent corrosion resistance provided by 18-8 stainless steel construction, ensuring long-term reliability in harsh environments
• High-strength performance with Rockwell B80 hardness, offering reliable clamping force and resistance to wear
• Secure, flush mounting enabled by the headless design, ideal for applications where space is limited
• Easy installation and removal with the 1.5 mm hex drive, allowing for precise torque application
• Consistent thread engagement due to Class 6g thread fit and coarse M3 x 0.5 mm pitch, reducing cross-threading risks
• Broad regulatory compliance meeting ASME B18.3.6M, RoHS 3, and REACH standards for global industrial use

Professional Applications & Engineering Value

This M3 brass tip set screw is engineered to solve critical assembly challenges in precision machinery, automotive components, and electronic enclosures. The 18-8 stainless steel body provides exceptional corrosion resistance, while the soft brass tip ensures zero damage to shafts, gears, or collars—eliminating costly surface marring. The headless hex drive design allows for flush installation in confined spaces, and the coarse metric thread with Class 6g fit offers quick, secure fastening without vibration loosening. Ideal for permanent positioning applications, this screw delivers reliable industrial set screw performance where material compatibility and precision are paramount.

Specification Summary & Compliance

This set screw features a Class 6g thread fit per ISO metric standards, ensuring precise dimensional accuracy. It is manufactured in compliance with ASME B18.3.6M for consistent quality and performance. The product is fully RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, meeting environmental and safety regulations for industrial use worldwide.