S-90269A345 M12 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments and chemical exposure
• Exceptional mechanical strength offering 70,000 psi tensile strength and 35,000 psi shear strength for reliable, heavy-duty load-bearing applications
• Precision alignment and smooth rotation enabled by the 70mm shoulder with tight diameter tolerance (-0.072 to -0.01 mm) for reduced wear on mating parts
• Secure, high-torque installation using the 8 mm hex socket drive, combined with a knurled head for enhanced grip during assembly
• Accurate and consistent threading with Class 5g6g thread fit and coarse 1.75 mm pitch, ensuring easy assembly and vibration resistance
• Long-term reliability supported by Rockwell B79 hardness, providing excellent durability and resistance to deformation under stress
• Global compliance and safety meeting ISO 7379, RoHS 3, and REACH standards for assured quality and environmental responsibility

Professional Applications & Engineering Value

This M12 shoulder screw in 316 stainless steel is engineered to address critical alignment and corrosion challenges in precision machinery. The 70mm shoulder length with controlled diameter tolerance ensures exact positioning of moving components—such as in bearings, gears, or linkages—reducing misalignment and extending equipment life. The coarse metric thread (M12x1.75mm) and Class 5g6g thread fit provide robust fastening in high-vibration settings, from automotive assemblies to food processing conveyors. With a socket head and knurled texture, it allows for secure tool engagement in confined spaces, while the material’s inherent corrosion resistance makes it suitable for marine, pharmaceutical, and chemical processing applications where moisture and chemicals are prevalent.

Specification Summary & Compliance

This metric shoulder screw adheres to ISO 7379 specifications, with precise dimensional controls: shoulder diameter tolerance of -0.072 to -0.01 mm and shoulder length tolerance of 0 to 0.25 mm. Threads are manufactured to Class 5g6g fit standards for consistent engagement. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring it is free of hazardous substances and safe for industrial use globally.