S-91273A847 M12 Shoulder Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with 18-8 stainless steel and black oxide finish, ideal for harsh industrial environments.
• Superior load-bearing capacity thanks to 70,000 psi tensile strength and 35,000 psi shear strength for demanding applications.
• Precise alignment and spacing enabled by the 12 mm shoulder diameter with tight tolerance and 16 mm shoulder length.
• Secure, non-slip installation with a knurled head and hex drive for reliable torque application and reduced tool slippage.
• Consistent thread engagement through Class 5g6g thread fit and M12x1.75 mm coarse thread for quick assembly.
• Durable performance under stress with Rockwell B55 hardness, ensuring long-term reliability in mechanical assemblies.
• Compliance with global standards including RoHS 3 and REACH, making it suitable for regulated industries.

Professional Applications & Engineering Value

This M12 shoulder screw is engineered to address common challenges in precision machinery and industrial equipment, such as misalignment and component wear. Made from 18-8 stainless steel with a black oxide finish, it resists corrosion and oxidation, extending service life in humid or chemically exposed settings. The knurled head and hex drive design facilitate secure handling and torque transmission, reducing installation errors. With a 16 mm shoulder length and precise diameter tolerance, it ensures accurate positioning in assemblies like bearings, pulleys, and linkages, minimizing vibration and improving overall system stability. Its right-hand metric thread and high strength make it a reliable choice for automotive, aerospace, and manufacturing applications where durability and compliance are critical.

Specification Summary & Compliance

This shoulder screw adheres to metric system standards with an M12x1.75 mm coarse thread and Class 5g6g thread fit for consistent dimensional accuracy. Shoulder diameter tolerance is -0.04 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, ensuring precise fits. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious and safety-focused industrial use.