S-90263A111 M2 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction and passivated finish, ideal for harsh environments and extended service life.
• Precise component alignment enabled by the 3mm shoulder diameter with tight tolerances, ensuring accurate assembly and reduced wear.
• High mechanical strength offering a tensile strength of 70,000 psi and Rockwell B79 hardness for reliable performance under load.
• Secure and efficient installation with a standard hex socket drive (1.5mm), allowing for high torque application and a flush, smooth head profile.
• Consistent and reliable threading with a Class 6g metric coarse thread (M2x0.4mm), providing excellent fit and vibration resistance.
• Compliance with major environmental regulations including RoHS 3 and REACH, ensuring safety and suitability for global industrial markets.

Professional Applications & Engineering Value

This M2 shoulder screw is engineered to address critical challenges in precision assembly. The 316 stainless steel material and passivated finish provide exceptional resistance to corrosion and chemicals, making it perfect for applications in medical devices, electronics, and marine equipment where moisture is a concern. The precise shoulder acts as a built-in spacer or pivot, eliminating the need for additional components and reducing assembly time while maintaining exact axial positioning. The socket head with a hex drive allows for compact designs and high clamping force in confined spaces. Its Class 6g thread ensures a secure fit, preventing loosening in vibrating environments and enhancing the overall durability of the assembly.

Specification Summary & Compliance

This metric shoulder screw features an M2 thread with a 0.4mm coarse pitch and a Class 6g thread fit per standard metric specifications. The shoulder diameter is 3mm with a tolerance of -0.025 to 0 mm, and the shoulder length is 2mm with a tolerance of 0 to 0.05 mm, ensuring high precision. The product is manufactured to be fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting stringent international regulatory standards for hazardous substances.