S-90265A531 M2 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and black oxide finish, ideal for harsh industrial environments.
• Exceptional mechanical strength offering 70,000 psi tensile and 45,000 psi shear strength for reliable load-bearing in demanding applications.
• Precise alignment and smooth rotation ensured by the 16mm shoulder with controlled diameter tolerance for reduced wear.
• Secure, slip-resistant installation with a knurled socket head and 2mm hex drive, enhancing torque transmission and grip.
• Accurate and consistent thread engagement due to Class 5g6g thread fit and M2 x 0.4mm coarse pitch for quick assembly.
• High durability and hardness with Rockwell B83 rating, maintaining performance under repeated use and stress.
• Compliance with environmental standards including RoHS 3 and REACH, ensuring safe and sustainable use in global markets.

Professional Applications & Engineering Value

This M2 shoulder screw is engineered to address critical assembly challenges in precision industries such as electronics, automotive, and machinery. The 18-8 stainless steel material combined with a black oxide finish provides excellent corrosion resistance, reducing maintenance in humid or chemically exposed settings. Its 16mm shoulder length and precise diameter tolerance allow for exact component positioning, minimizing misalignment and bearing surface wear. The knurled socket head and 2mm hex drive facilitate secure tightening in confined spaces, while the Class 5g6g thread fit ensures reliable fastening in metric coarse pitch applications. Ideal for securing rotating parts, linkages, and guides, this screw enhances equipment longevity and operational efficiency.

Specification Summary & Compliance

This shoulder screw adheres to metric system standards with an M2 x 0.4mm coarse thread and Class 5g6g thread fit for precise dimensional accuracy. The shoulder diameter tolerance is -0.072 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, ensuring consistent performance. It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming its suitability for industrial use without hazardous substances.