S-90265A116 M3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments.
• Precise alignment and spacing ensured by the 4mm shoulder diameter with tight tolerance control.
• High mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for reliable load-bearing applications.
• Secure and efficient installation via the 2mm hex socket drive and knurled head for enhanced grip.
• Accurate and durable thread engagement with Class 5g6g thread fit and coarse M3x0.5 pitch for stable fastening.
• Environmental and regulatory compliance meeting RoHS 3 and REACH standards for safe, sustainable use.
• Consistent performance backed by Rockwell B55 hardness, ensuring long-term wear resistance.

Professional Applications & Engineering Value

This M3 shoulder screw is engineered to address critical alignment and durability challenges in precision assemblies. The 18-8 stainless steel material provides excellent resistance to corrosion and oxidation, making it suitable for applications in electronics, machinery, and automotive sectors where exposure to moisture or chemicals is common. The 4mm shoulder diameter and controlled length tolerance allow for precise component positioning, reducing misalignment and wear in rotating parts or bushings. Combined with a Class 5g6g thread fit and coarse thread pitch, it ensures quick, secure fastening even in high-vibration environments. The socket head with hex drive facilitates easy installation in confined spaces, while the knurled texture enhances handling during assembly. Ideal for use in jigs, fixtures, and precision instruments, this screw delivers reliable industrial durability and consistent performance.

Specification Summary & Compliance

This shoulder screw adheres to metric system standards with an M3x0.5 coarse thread and Class 5g6g thread fit for precise tolerance. The shoulder diameter tolerance is -0.072 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, ensuring high dimensional accuracy. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious and regulated industrial applications.