S-90265A427 M12 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments and extended service life.
• Precise component alignment ensured by the 50mm shoulder with tight length tolerance (0 to 0.25 mm), reducing assembly errors and improving machine performance.
• High-strength reliability with a tensile strength of 70,000 psi and Rockwell B83 hardness, providing dependable performance under significant loads.
• Secure, non-slip fastening thanks to the knurled socket head and 10mm hex drive, allowing for high-torque installation without tool slippage.
• Accurate and durable thread engagement with a Class 5g6g thread fit and coarse M12 x 1.75mm pitch, ensuring easy assembly and long-term vibration resistance.
• Global compliance and safety by meeting ISO 7379 standards and being RoHS 3 & REACH compliant, suitable for international industrial applications.
• Optimized for precision machinery with a standard shoulder fit and controlled shoulder diameter tolerance (-0.072 to -0.01 mm), facilitating exact positioning in assemblies.

Professional Applications & Engineering Value

This M12 shoulder screw is engineered to address critical alignment and durability challenges in precision industrial applications. The 18-8 stainless steel material offers excellent resistance to rust and corrosion, making it suitable for environments exposed to moisture or chemicals. The 50mm shoulder length with minimal tolerance provides a stable pivot or bearing surface, essential in machinery like conveyor systems, robotic arms, and automated equipment, where precise part location is crucial. The knurled socket head enhances grip during installation, reducing the risk of damage from slipping tools. With a coarse thread pitch and Class 5g6g thread fit, it ensures quick, secure fastening and high resistance to loosening under vibration, thereby minimizing maintenance needs and improving operational uptime in demanding settings.

Specification Summary & Compliance

This metric shoulder screw adheres to ISO 7379 standards, with a thread size of M12 x 1.75mm and Class 5g6g thread fit for consistent dimensional accuracy. The shoulder diameter tolerance is -0.072 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, ensuring precise fits in assemblies. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious and global industrial use without hazardous substances.