S-90269A123 M3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh industrial environments and extended service life.
• Exceptional mechanical strength with a tensile strength of 70,000 psi and Rockwell B79 hardness for reliable performance under high-stress conditions.
• Precise alignment and smooth rotation enabled by the 16mm shoulder with controlled tolerances, reducing component wear.
• Secure and efficient installation with a 2mm hex socket drive and knurled head texture, preventing tool slippage and speeding up assembly.
• Reliable thread engagement with a Class 5g6g thread fit and M3x0.5mm coarse pitch, ensuring consistent fastening in various materials.
• Compliance with global standards, including RoHS 3 and REACH, making it suitable for regulated industries and international projects.

Professional Applications & Engineering Value

This M3 shoulder screw is engineered to address critical alignment and durability challenges in precision assemblies. The 316 Stainless Steel material offers excellent resistance to chemicals and moisture, preventing failure in demanding settings like marine, chemical processing, and food machinery. The 16mm shoulder length with tight diameter and length tolerances acts as a precise pivot or spacer, minimizing misalignment and reducing wear on moving parts. Combined with the hex socket drive and knurled head, it ensures secure, tool-friendly installation even in confined spaces, enhancing assembly efficiency and reducing the risk of damage during maintenance. This makes it an ideal choice for applications requiring robust, corrosion-resistant fastening with exact positioning.

Specification Summary & Compliance

This shoulder screw features a Metric M3x0.5mm coarse pitch thread with a Class 5g6g thread fit for standard tolerance applications. The shoulder diameter is 4 mm with a tolerance of -0.072 to -0.01 mm, and the shoulder length is 16 mm with a tolerance of 0 to 0.25 mm, ensuring precise dimensional control. It is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally sensitive and industrial uses worldwide.