S-90265A209 M4 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ensuring long-term reliability in harsh industrial environments.
• Precise alignment and reduced wear thanks to the 6mm shoulder diameter with tight tolerance, providing stable bearing surfaces for rotating components.
• High mechanical strength offering 70,000 psi tensile and 45,000 psi minimum shear strength for demanding applications.
• Easy installation and removal with a 3mm hex socket drive, allowing secure torque application without slippage.
• Accurate and reliable threading with Class 5g6g fit and coarse 0.7mm pitch, ensuring consistent fastening in various materials.
• Durable and hardened performance from Rockwell B83 hardness, resisting deformation under load.
• Global compliance and safety meeting ISO 7379 standards and RoHS 3/REACH regulations for unrestricted use in international markets.

Professional Applications & Engineering Value

This M4 shoulder screw is engineered to address critical alignment and durability challenges in precision machinery, such as in assembly jigs, rotating shafts, and gear mechanisms. The 18-8 stainless steel material provides excellent resistance to rust and corrosion, making it ideal for environments exposed to moisture or chemicals. Its shoulder design acts as a precise spacer or pivot, reducing friction and wear on moving parts, while the socket head with 3mm hex drive ensures easy access in confined spaces. With a coarse thread pitch and Class 5g6g thread fit, it offers quick assembly and reliable holding power, minimizing the risk of loosening in high-vibration settings like automotive or robotics applications.

Specification Summary & Compliance

This shoulder screw features a metric M4 x 0.7mm coarse thread with a 10mm thread length and Class 5g6g thread fit for precise dimensional accuracy. The shoulder diameter tolerance is -0.072 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, ensuring consistent performance. It complies with ISO 7379 manufacturing standards and is RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, guaranteeing environmental safety and regulatory adherence.