S-90265A197 M3 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 torque transmission via the 2.5 mm hex drive socket head, ensuring secure, slip-resistant installation.
• Precise alignment and spacing with a 5 mm shoulder diameter and 17 mm shoulder length, maintaining component stability.
• High mechanical strength offering 70,000 psi tensile and 45,000 psi shear strength for demanding applications.
• Consistent thread engagement with Class 5g6g thread fit and coarse M3 x 0.5 mm pitch for quick assembly.
• Improved grip during manual handling thanks to the knurled head texture, reducing installation errors.
• Compliance with international standards including ISO 7379, RoHS 3, and REACH for reliable, safe use.

Professional Applications & Engineering Value

This M3 shoulder screw is engineered to address critical alignment and durability challenges in precision assemblies. Made from 18-8 stainless steel, it resists rust and wear in moist or chemical-exposed settings, such as machinery, automotive components, and electronic enclosures. The socket head with hex drive allows for high-torque application without stripping, while the knurled texture enhances manual control during placement. Its shoulder design provides exact positioning for rotating parts like bearings and pulleys, reducing vibration and misalignment. With a coarse thread pitch and right-hand thread, it ensures rapid, secure fastening in high-volume production lines, minimizing downtime and maintenance costs.

Specification Summary & Compliance

This shoulder screw adheres to ISO 7379 specifications, with thread dimensions of M3 x 0.5 mm and a Class 5g6g thread fit for precise tolerance. The shoulder diameter tolerance ranges from -0.072 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, ensuring consistent performance. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing safety and environmental responsibility in industrial use.