S-90265A223 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 environments.
• Precise alignment and smooth rotation thanks to the 20mm shoulder with controlled diameter tolerance, reducing wear on mating parts.
• High mechanical strength with 70,000 psi tensile and 45,000 psi minimum shear strength, providing dependable load-bearing capacity.
• Secure and efficient installation using a 3mm hex drive, allowing for high torque application without slippage.
• Accurate and consistent threading with Class 5g6g fit and 0.7mm coarse pitch, enabling quick assembly and vibration resistance.
• Compliance with international standards including ISO 7379, ensuring interchangeability and quality in global applications.
• Environmentally safe manufacturing with RoHS 3 and REACH compliance, meeting stringent regulatory requirements for industrial use.

Professional Applications & Engineering Value

This M4 shoulder screw is engineered to address common industrial challenges such as misalignment, component wear, and corrosion-induced failure. The 18-8 stainless steel material offers excellent resistance to rust and chemicals, making it ideal for machinery, automotive assemblies, and electronic enclosures exposed to moisture or aggressive substances. The 20mm shoulder length provides a precise pivot or spacer, eliminating the need for additional bushings and reducing assembly time. With a socket head and hex drive design, it allows for compact installation in confined spaces while maintaining high clamping force. The Class 5g6g thread fit ensures reliable engagement, minimizing loosening under dynamic loads. These features make it a top choice for precision engineering applications requiring durability, dimensional accuracy, and regulatory compliance.

Specification Summary & Compliance

This shoulder screw adheres to ISO 7379 standards, with thread dimensions of M4 x 0.7mm coarse pitch and a Class 5g6g thread fit for consistent performance. The shoulder diameter tolerance is -0.072 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, ensuring precise assembly. It is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), confirming the absence of hazardous substances and supporting sustainable industrial practices.