S-90265A201 M4 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 extended service life.
• Precise alignment and smooth rotation thanks to the 40mm shoulder with tight diameter tolerance, reducing wear in assemblies.
• High-strength performance with 70,000 psi tensile strength and 45,000 psi minimum shear strength, ensuring reliable load-bearing capacity.
• Secure, non-slip fastening enabled by the knurled socket head and 2.5mm hex drive for maximum torque application and reduced tool slippage.
• Accurate and consistent threading with Class 5g6g thread fit and M4 x 0.7mm coarse pitch, facilitating quick assembly and disassembly.
• Durable and wear-resistant material with Rockwell B83 hardness, maintaining integrity under repeated use and mechanical stress.
• Compliance with international standards including ISO 7379, RoHS 3, and REACH, ensuring safety and regulatory adherence for global applications.

Professional Applications & Engineering Value

This M4 shoulder screw is engineered to address common challenges in precision machinery, such as misalignment and component wear. The 40mm shoulder length provides a stable bearing surface for rotating parts like gears and pulleys, minimizing friction and extending equipment lifespan. Made from 18-8 stainless steel, it offers excellent corrosion resistance in moist or chemical-exposed settings, from automotive assemblies to electronic enclosures. The knurled socket head with a 2.5mm hex drive ensures secure tool engagement, reducing the risk of stripping during high-torque installations. With a coarse thread pitch of 0.7mm, it allows for rapid fastening in production lines, while the Class 5g6g thread fit guarantees consistent performance in industrial shoulder screw applications, supporting efficient maintenance and reduced downtime.

Specification Summary & Compliance

This shoulder screw adheres to ISO 7379 standards, with precise dimensions including a shoulder diameter tolerance of -0.072 to -0.01 mm and shoulder length tolerance of 0 to 0.25 mm. The metric thread follows Class 5g6g fit for accuracy, and the product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for diverse industrial uses.