S-90265A790 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.
• Enhanced durability and reduced galling thanks to the black oxide finish, extending service life.
• High mechanical strength with 70,000 psi tensile and 45,000 psi shear strength for demanding applications.
• Precise component alignment ensured by the knurled head and controlled shoulder diameter tolerance.
• Secure and reliable fastening with a Class 5g6g thread fit, minimizing the risk of loosening.
• Easy installation and removal using a standard 6 mm hex key for efficient assembly.
• Compliance with international standards including ISO 7379, RoHS 3, and REACH for global supply chain use.

Professional Applications & Engineering Value

This M8 shoulder screw is engineered to solve critical alignment and wear challenges in industrial applications. The 18-8 stainless steel material provides excellent resistance to rust and corrosion, while the black oxide finish adds a protective layer that reduces friction and prevents seizing in high-stress assemblies. The precise shoulder diameter and knurled head ensure accurate positioning and anti-rotation in machinery, jigs, and pivoting mechanisms. With a coarse thread pitch of 1.25 mm and hex drive design, it offers quick, secure fastening, making it ideal for automation equipment, automotive fixtures, and precision tooling where reliability and repeatability are paramount.

Specification Summary & Compliance

This metric shoulder screw features an M8x1.25 thread with Class 5g6g thread fit for consistent engagement. Shoulder diameter tolerance is tightly controlled at -0.072 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, ensuring high dimensional accuracy. Manufactured to ISO 7379 specifications, it is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting stringent environmental and safety standards for global industrial use.