S-90269A889 M12 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh environments and chemical exposure.
• High-strength performance offering 70,000 psi tensile strength and 35,000 psi minimum shear strength for reliable load-bearing in demanding applications.
• Precise assembly and alignment enabled by the 30mm shoulder diameter and standard shoulder fit, ensuring component stability.
• Secure, high-torque installation with the 10mm hex socket drive and knurled head, providing excellent grip and reducing tool slippage.
• Consistent thread engagement due to the M12x1.75 coarse pitch and Class 5g6g thread fit, facilitating quick assembly and vibration resistance.
• Enhanced durability and wear resistance from Rockwell B79 hardness, extending service life in high-stress industrial settings.
• Compliance with global environmental standards including RoHS 3 and REACH, ensuring safety and regulatory acceptance for international projects.

Professional Applications & Engineering Value

This M12 shoulder screw is engineered to address critical challenges in precision machinery, automation systems, and assembly jigs. The 316 Stainless Steel material provides exceptional resistance to corrosion and oxidation, making it suitable for marine, chemical processing, and food-grade equipment where moisture and aggressive agents are present. The hex socket head with knurling ensures secure tool engagement, minimizing the risk of stripping during high-torque applications. The 30mm shoulder diameter and precise shoulder length act as a pivot or spacer, maintaining accurate alignment of moving parts and reducing wear on connected components. With its coarse pitch thread and Class 5g6g tolerance, this screw offers reliable fastening in vibrating environments, preventing loosening and ensuring long-term operational integrity in industrial automation, robotics, and heavy-duty equipment.

Specification Summary & Compliance

This shoulder screw adheres to Metric system standards with an M12x1.75 coarse thread size and pitch, and a Class 5g6g thread fit for consistent dimensional accuracy. The shoulder features a diameter of 20 mm with a tolerance of -0.072 to -0.01 mm and a length of 30 mm with a tolerance of 0 to 0.25 mm, ensuring precise fit in assemblies. It is manufactured to comply with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious and regulated industrial applications.