S-92981A515 M12 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Superior Wear Resistance & Durability: Made from alloy steel with Rockwell C32 hardness to withstand high-stress applications and repetitive use without deformation.
• Precise Component Alignment: Features a 70mm shoulder length with a tight tolerance to act as a reliable axle or pivot, ensuring accurate parts location and reducing assembly errors.
• Enhanced Corrosion Protection: The black oxide finish provides a durable layer that resists rust and oxidation, extending the screw's service life in various industrial environments.
• Secure & High-Torque Installation: The 8mm internal hex drive (socket head) allows for high tightening torque and a flush installation, preventing cam-out and offering a clean profile.
• Reliable Thread Engagement: Class 5g6g thread fit on the M12x1.75 coarse thread ensures consistent, secure fastening with standard nuts and tapped holes, minimizing the risk of cross-threading.
• Global Standards Compliance: Manufactured to ISO 7379 specifications, guaranteeing dimensional accuracy and interchangeability for international engineering projects.
• Environmentally Conscious Manufacturing: Compliant with RoHS 3 and REACH regulations, ensuring the product is free from hazardous substances for safe use and disposal.

Professional Applications & Engineering Value

This M12 shoulder screw is engineered to solve critical alignment and pivot challenges in demanding industrial applications. The 70mm shoulder length with its precise diameter provides a stable bearing surface for gears, pulleys, and linkages, eliminating the need for additional spacers and bushings. This simplifies assembly, reduces parts count, and minimizes points of failure. Constructed from high-strength alloy steel and treated to a Rockwell C32 hardness, it resists shear forces and wear in high-cycle machinery. The black oxide finish offers an essential layer of corrosion resistance, making it suitable for environments exposed to moisture and chemicals. Its ISO 7379 compliance ensures it fits perfectly within global machine designs, from conveyor systems to automated robotics, providing reliable performance and reducing maintenance downtime.

Specification Summary & Compliance

This precision shoulder screw features an M12x1.75 coarse thread with a Class 5g6g thread fit for reliable engagement. 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, ensuring high dimensional accuracy. The manufacturing and material specifications conform to ISO 7379. The product is also verified to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to strict environmental and safety standards for industrial components.