S-90263A259 M5 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction and passivated finish, ideal for harsh industrial environments
• Precise component alignment enabled by the 6mm shoulder diameter with tight tolerance (-0.025 to 0mm) for reliable assembly
• High mechanical strength offering 70,000 psi tensile strength and Rockwell B79 hardness for demanding applications
• Secure and efficient installation with socket head hex drive design, preventing cam-out during torque application
• Consistent thread engagement through Class 6g thread fit and M5x0.8mm coarse pitch for quick assembly
• Durable shoulder section with 25mm length and precise tolerance (0 to 0.05mm) for stable rotational support
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for safe use in global markets

Professional Applications & Engineering Value

This M5 shoulder screw is engineered to address critical alignment and durability challenges in industrial applications such as machinery assemblies, precision instruments, and rotating mechanisms. The 316 stainless steel material combined with a passivated finish provides exceptional resistance to chemicals, moisture, and oxidation, reducing maintenance in corrosive environments. The precise shoulder diameter and length ensure accurate positioning of components like bearings, gears, and pulleys, minimizing wear and vibration. With its socket head hex drive and coarse pitch metric thread, it enables quick, secure fastening without stripping, making it ideal for high-stress setups where reliability and repeatability are paramount.

Specification Summary & Compliance

The screw features a Class 6g thread fit per metric standards, ensuring dimensional accuracy and interchangeability. Shoulder diameter tolerance is -0.025 to 0 mm, and shoulder length tolerance is 0 to 0.05 mm, supporting precise engineering requirements. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of hazardous substances for safe industrial use.