S-90270A221 M1.6 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ensuring long-term reliability in harsh environments
• Precise alignment and smooth rotation thanks to the 2mm shoulder diameter with tight tolerances for accurate component positioning
• Easy installation and removal with standard socket head design, compatible with common tools for efficient assembly
• Reliable thread engagement featuring Class 6g thread fit and coarse 0.35mm pitch for secure fastening in various materials
• Environmental compliance assurance meeting RoHS 3 and REACH standards for safe use in regulated industries
• Consistent dimensional accuracy with controlled shoulder length and diameter tolerances, reducing assembly errors
• Versatile right-hand threading designed for standard metric applications, simplifying inventory and usage

Professional Applications & Engineering Value

This M1.6 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 ideal for electronics, medical devices, and optical equipment where environmental factors can compromise performance. The precise shoulder diameter of 2mm with minimal tolerance ensures components like gears, bearings, or spacers are accurately positioned without misalignment, reducing wear and improving operational lifespan. With its Class 6g thread fit and coarse pitch, it offers robust holding power in delicate mechanisms, while the socket head allows for compact installations in space-constrained designs. This screw is commonly used in robotics, instrumentation, and automated systems where reliability and precision are non-negotiable.

Specification Summary & Compliance

This shoulder screw adheres to metric system standards with a thread size of M1.6 and pitch of 0.35mm, ensuring compatibility with international components. The Class 6g thread fit provides standard tolerance for general applications, while the shoulder diameter tolerance of -0.025 to 0 mm and shoulder length tolerance of -0.2 to 0 mm guarantee consistent performance. It is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for use in products requiring environmental and safety adherence.