S-90265A204 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 washdown applications
• Precise component alignment thanks to the 60mm shoulder with tight diameter tolerance (-0.072 to -0.01 mm), reducing assembly time and improving product quality
• High mechanical strength and durability with a tensile strength of 70,000 psi and Rockwell B83 hardness, ensuring long-term reliability under load
• Secure and efficient installation with a 2.5 mm hex socket drive and knurled head for excellent grip and torque transmission
• Reliable thread engagement with Class 5g6g thread fit and coarse M4 x 0.7mm pitch, providing robust fastening in various materials
• Global compliance and safety meeting ISO 7379 standards and being RoHS 3 & REACH compliant for use in regulated industries
• Optimized for demanding applications with a 5mm thread length and standard shoulder fit, offering versatile mounting solutions

Professional Applications & Engineering Value

This M4 shoulder screw is engineered to address critical challenges in precision assembly and motion control systems. The 18-8 stainless steel material provides excellent resistance to rust and corrosion, making it suitable for food processing, medical devices, and outdoor equipment where moisture is a concern. The long 60mm shoulder length acts as a precise pivot or spacer, eliminating the need for additional bushings and reducing parts count in assemblies like conveyor systems, robotics, and CNC machinery. The hex socket drive and knurled head ensure secure tool engagement, preventing cam-out during high-torque installation. With its coarse thread and Class 5g6g thread fit, it delivers strong holding power in metals and plastics, minimizing the risk of stripping. This screw is a reliable choice for engineers seeking to enhance alignment accuracy and operational longevity in industrial applications.

Specification Summary & Compliance

This shoulder screw features a M4 x 0.7mm coarse thread with a Class 5g6g thread fit per ISO metric standards, ensuring precise and consistent engagement. The shoulder diameter tolerance is tightly controlled at -0.072 to -0.01 mm, and the shoulder length tolerance is 0 to 0.25 mm, guaranteeing high dimensional accuracy for reliable performance. Manufactured in compliance with ISO 7379, it also meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its suitability for global markets and sensitive applications.