S-90278A741 M3.5 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 component alignment thanks to the 14mm shoulder with tight tolerances, reducing assembly errors and improving product quality.
• High-strength performance offering 70,000 psi tensile strength and Rockwell B55 hardness for dependable load-bearing in demanding applications.
• Secure, tamper-resistant fastening with a hex socket drive, allowing for high torque application and reduced risk of stripping.
• Accurate and reliable thread engagement with Class 6g metric coarse threads, ensuring consistent fit and reducing the chance of cross-threading.
• Compliance with international environmental standards including RoHS 3 and REACH, making them suitable for global supply chains and sensitive industries.
• Optimized for metric system applications with M3.5x0.6mm right-hand thread, providing broad compatibility and ease of integration.

Professional Applications & Engineering Value

This precision shoulder screw is engineered to address common industrial challenges such as misalignment, vibration loosening, and corrosion-induced failure. Made from 18-8 stainless steel, it offers excellent resistance to rust and chemicals, ideal for use in machinery, automotive assemblies, and electronic enclosures where environmental factors are a concern. The hex socket drive and Class 6g thread fit ensure secure installation and consistent performance, while the precisely machined shoulder provides stable pivoting or spacing in rotating parts, reducing wear and maintenance costs. Its metric coarse thread and robust design make it a reliable choice for high-stress applications, enhancing overall equipment durability and efficiency.

Specification Summary & Compliance

The screw features a Class 6g thread fit per metric standards, with shoulder diameter tolerance of -0.025 to 0 mm and shoulder length tolerance of 0 to 0.05 mm for high precision. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets strict environmental and safety requirements for industrial use.