S-90265A217 M4 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and long-term reliability.
• High mechanical strength with 70,000 psi tensile strength and Rockwell B83 hardness for demanding load-bearing applications.
• Precise alignment and pivot function enabled by the 6mm shoulder diameter with tight tolerance control, reducing wear on mating parts.
• Secure and flush installation using the standard hex socket drive, providing a clean finish and reliable torque transmission.
• Robust thread engagement with Class 5g6g thread fit and coarse 0.7mm pitch for quick assembly and vibration resistance.
• Dimensional consistency ensured by ISO 7379 compliance, guaranteeing interchangeability and fit in precision assemblies.
• Environmental and safety compliance with RoHS 3 and REACH standards, making it suitable for regulated industries.

Professional Applications & Engineering Value

This M4 shoulder screw is engineered to address critical alignment and pivot challenges in mechanical assemblies. The 18-8 stainless steel provides excellent corrosion resistance, essential for equipment exposed to moisture, chemicals, or outdoor conditions. The 6mm shoulder diameter with controlled tolerances acts as a precise locating dowel, minimizing misalignment and reducing stress on the M4 x 0.7mm coarse thread. This design is vital in applications like rotating machinery, automation guides, and precision instruments, where the 15mm shoulder length offers stable support. The hex socket drive allows for compact installation in confined spaces, while the high tensile and shear strength ensures durability under dynamic loads, making it a reliable choice for industrial and engineering use.

Specification Summary & Compliance

This shoulder screw features a Class 5g6g thread fit per metric standards, ensuring precise thread engagement. The shoulder diameter tolerance is controlled between -0.072 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, providing high dimensional accuracy. Manufactured in compliance with ISO 7379 for consistent quality and performance. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its suitability for use in eco-sensitive and global markets.