S-90265A297 M8 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments and outdoor applications.
• Enhanced durability and load capacity from Rockwell B83 hardness and 70,000 psi tensile strength, ensuring reliable performance under stress.
• Secure and non-slip installation thanks to the knurled socket head and 5mm hex drive, allowing for precise torque application.
• Accurate alignment and spacing with an 18mm shoulder length and tight diameter tolerance, reducing assembly errors in precision machinery.
• Wide compatibility and easy integration with Class 5g6g coarse metric threads (M8x1.25), fitting standard industrial components seamlessly.
• Long-term reliability backed by ISO 7379 standards and compliance with RoHS 3 and REACH, meeting global environmental and safety regulations.
• Optimized shear resistance with a minimum 45,000 psi shear strength, providing stability in dynamic or vibrating applications.

Professional Applications & Engineering Value

This M8 shoulder screw is engineered to address common challenges in precision assembly, such as misalignment and component wear. The 18-8 stainless steel material offers excellent corrosion resistance, making it suitable for applications in chemical processing, marine equipment, and food machinery where moisture and contaminants are concerns. The knurled socket head and hex drive design ensure secure fastening without slippage, even in high-torque scenarios. With a coarse thread pitch of 1.25mm, it enables quick installation and robust holding power in industrial automation and machinery frames. The precise shoulder length and diameter tolerances facilitate accurate pivoting and spacing in rotating parts, reducing maintenance needs and enhancing operational efficiency. Ideal for use in precision engineering and OEM components, this screw delivers consistent performance under varying loads.

Specification Summary & Compliance

This shoulder screw adheres to ISO 7379 specifications, ensuring dimensional accuracy with a Class 5g6g thread fit for reliable engagement. Key tolerances include a shoulder diameter of 10 mm (-0.072 to -0.01 mm) and shoulder length of 18 mm (0 to 0.25 mm). It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety for use in restricted substance-sensitive environments. Manufactured to meet industrial standards, it supports applications requiring high tensile and shear strength with consistent performance.