S-92981A507 M12 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional durability and load-bearing capacity with 140,000 psi tensile strength and 84,000 psi minimum shear strength, ideal for high-stress industrial applications.
• Superior corrosion resistance thanks to the black oxide finish, extending service life in harsh or humid environments.
• Precise alignment and smooth rotation enabled by the 50mm shoulder with controlled diameter tolerance, reducing wear on mating parts.
• Reliable thread engagement with Class 5g6g thread fit and coarse 1.75mm pitch, ensuring easy assembly and vibration resistance.
• Secure and efficient installation using an 8mm hex drive socket head, providing high torque transmission without stripping.
• Consistent performance and interchangeability guaranteed by compliance with ISO 7379 standards for dimensional accuracy.
• Environmentally responsible manufacturing with RoHS 3 and REACH compliance, meeting global regulatory requirements.

Professional Applications & Engineering Value

This M12 shoulder screw is engineered to address critical alignment and mechanical stability challenges in precision machinery, automation systems, and heavy-duty equipment. The alloy steel construction, hardened to Rockwell C32, provides robust resistance to deformation under continuous loads, while the black oxide finish offers a protective layer against rust and oxidation in industrial settings. The 50mm shoulder length acts as a precise pivot or spacer, minimizing radial play and reducing stress concentrations in assemblies. With its coarse thread pitch and socket head design, it ensures quick, secure fastening in applications requiring repeated disassembly, such as jigs, fixtures, and conveyor systems, enhancing overall equipment reliability and maintenance efficiency.

Specification Summary & Compliance

This shoulder screw adheres to ISO 7379 for dimensional consistency, featuring an M12x1.75mm metric thread with Class 5g6g tolerance for reliable fit. The shoulder diameter tolerance is -0.072 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, ensuring precise assembly. It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming the absence of hazardous substances for safe use in various industries.