S-92981A517 M12 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional wear resistance and durability thanks to alloy steel construction and Rockwell C32 hardness, extending service life in demanding applications.
• Superior corrosion protection from the black oxide finish, safeguarding the screw in various industrial environments.
• Precise component alignment and location enabled by the smooth, 120mm long shoulder with controlled diameter tolerance.
• High torque application capability with the 8mm hex socket drive, providing a secure, non-slip fastening solution.
• Reliable and consistent thread engagement ensured by the Class 5g6g thread fit and coarse M12x1.75mm thread for quick assembly.
• Global compliance and material safety with adherence to ISO 7379, RoHS 3, and REACH standards for international projects.
• Versatile right-hand thread design compatible with standard metric components, simplifying sourcing and assembly processes.

Professional Applications & Engineering Value

This M12 shoulder screw is engineered to solve critical alignment and pivot point challenges in machinery and automation. The alloy steel core, hardened to Rockwell C32, provides the necessary strength to withstand shear forces and repetitive motion without deforming. The long, 120mm shoulder acts as a precise axle or dowel, ensuring components like gears, levers, and bearings remain perfectly positioned, eliminating misalignment and reducing wear on mating parts. The black oxide finish adds a layer of corrosion resistance, making it suitable for environments where moisture or mild chemicals are present. Its socket head with an 8mm hex drive allows for installation in confined spaces, delivering high clamp force where it's needed most. This combination of precision, strength, and corrosion protection makes it an indispensable industrial shoulder bolt for robotics, conveyor systems, and precision assembly jigs.

Specification Summary & Compliance

This precision shoulder screw features a M12x1.75mm coarse thread with a Class 5g6g thread fit for reliable fastening. The shoulder diameter is manufactured to a tight tolerance of -0.072 to -0.01 mm, and the shoulder length has a tolerance of 0 to 0.25 mm, ensuring high dimensional accuracy. The manufacturing and material specifications conform to ISO 7379. The product is also RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring it meets strict environmental and safety regulations for hazardous substances.