S-90265A403 M12 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and long-term reliability.
• Precise component alignment and pivot points due to the 55mm shoulder with tight diameter tolerance, minimizing assembly play.
• High mechanical strength offering 70,000 PSI tensile strength and 45,000 PSI shear strength for demanding, high-stress applications.
• Secure, non-slip fastening enabled by the knurled head and 8mm hex socket drive, allowing for high torque application.
• Reliable and consistent thread engagement with a Class 5g6g thread fit and coarse M12x1.75 thread for quick assembly and vibration resistance.
• Guaranteed dimensional accuracy and interchangeability through compliance with the international ISO 7379 standard.
• Environmentally responsible manufacturing ensuring compliance with RoHS 3 and REACH regulations for safe use in various industries.

Professional Applications & Engineering Value

This M12 shoulder screw is engineered to solve critical alignment and rotational challenges in mechanical assemblies. The 55mm shoulder length acts as a precise datum for locating parts like gears, pulleys, and linkages, eliminating the need for additional bushings and reducing assembly complexity. Manufactured from 18-8 Stainless Steel, it provides excellent resistance to rust and corrosion, making it suitable for food processing, packaging machinery, and outdoor equipment. The Class 5g6g thread fit ensures a secure connection that withstands vibrational loosening, while the knurled head and socket drive facilitate installation in confined spaces. Its high tensile strength and Rockwell B83 hardness ensure durability in heavy-duty applications, providing long-term performance and reducing maintenance downtime.

Specification Summary & Compliance

This precision shoulder screw features an M12x1.75 coarse metric thread with a Class 5g6g thread fit for standard industrial use. The shoulder diameter is held to a tight tolerance of -0.072 to -0.01 mm, and the shoulder length tolerance is 0 to 0.25 mm. It is manufactured in accordance with the ISO 7379 standard and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations.