S-90265A550 M3 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments.
• High-strength performance offering 70,000 psi tensile strength and 45,000 psi shear strength for reliable load-bearing in demanding applications.
• Precise alignment and spacing ensured by the 8mm shoulder with controlled diameter tolerance, reducing component wear.
• Secure, non-slip grip provided by the knurled socket head and 2mm hex drive, facilitating easy installation and removal.
• Durable, wear-resistant surface due to the black oxide finish, which also enhances corrosion protection.
• Wide compatibility and reliable fit with M3x0.5 coarse metric threads and Class 5g6g thread fit, meeting international standards.
• Environmental and safety compliance with RoHS 3 and REACH, ensuring safe use in regulated industries.

Professional Applications & Engineering Value

This M3 shoulder screw is engineered to address critical alignment and high-stress challenges in precision assemblies. The 18-8 stainless steel material provides excellent resistance to corrosion and oxidation, making it suitable for automotive, machinery, and electronic applications where exposure to moisture or chemicals is common. The 8mm shoulder length acts as a precise pivot or spacer, minimizing misalignment and reducing wear on moving parts. Combined with a knurled socket head and black oxide finish, it ensures secure handling and extended durability. Its coarse thread (M3x0.5) and high tensile strength enable quick assembly and reliable performance under vibration and heavy loads, offering long-term engineering value and reduced maintenance.

Specification Summary & Compliance

This shoulder screw features precise dimensions, including a shoulder diameter of 4 mm (tolerance: -0.072 to -0.01 mm) and shoulder length of 8 mm (tolerance: 0 to 0.25 mm). Thread specifications include M3x0.5 coarse metric threads with a Class 5g6g thread fit for consistent engagement. It is manufactured in compliance with ISO 7379 standards and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring quality and safety for industrial use.