S-90269A841 M12 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and extended service life.
• Exceptional mechanical strength offering 70,000 psi tensile strength and 35,000 psi minimum shear strength for reliable performance under high stress.
• Precise component alignment enabled by the 170mm shoulder with controlled diameter and length tolerances for smooth assembly.
• Enhanced grip and tool engagement from the knurled hex socket head and 8mm drive, reducing slippage during installation.
• Durable, wear-resistant surface with a black oxide finish that adds an extra layer of protection and a professional appearance.
• Accurate and secure fastening ensured by the M12x1.75 coarse thread with Class 5g6g fit, meeting stringent ISO 7379 standards.
• Broad regulatory compliance including RoHS 3 and REACH, ensuring safety and environmental standards are met for global supply chains.

Professional Applications & Engineering Value

This M12 shoulder screw is engineered to address critical alignment and durability challenges in demanding industrial settings. Manufactured from 316 stainless steel, it provides excellent resistance to corrosion, making it suitable for applications in chemical processing, marine equipment, and food machinery where moisture and aggressive substances are present. The 170mm shoulder length and precise diameter tolerance ensure accurate positioning of moving parts, such as in rotating assemblies, pulleys, and gears, reducing wear and minimizing maintenance downtime. The black oxide finish not only enhances corrosion protection but also reduces galling, while the knurled hex socket head offers superior torque transmission, preventing tool slip in high-vibration environments. By integrating a coarse thread design and ISO 7379 compliance, this screw delivers reliable, repeatable performance in precision engineering and automation systems.

Specification Summary & Compliance

This shoulder screw features a Class 5g6g thread fit with M12x1.75 coarse threading, ensuring dimensional accuracy and interchangeability. The shoulder diameter is tightly controlled at 16 mm with a tolerance of -0.072 to -0.01 mm, and the shoulder length is 170 mm with a 0 to 0.25 mm tolerance, providing consistent alignment. It is manufactured in accordance with ISO 7379 specifications and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, affirming its suitability for use in regulated and environmentally conscious industries.