S-90265A555 M3 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
• Enhanced durability and wear resistance from black oxide finish, providing long-lasting performance
• High tensile strength of 70,000 psi ensures reliable load-bearing capacity in demanding applications
• Precise Class 5g6g thread fit guarantees smooth assembly and secure fastening with minimal play
• Knurled head texture offers improved grip for easier manual handling during installation
• 2 mm hex socket drive allows for efficient torque application with standard tools, reducing installation time
• Compliance with ISO 7379, RoHS 3, and REACH ensures environmental safety and international quality standards

Professional Applications & Engineering Value

This M3 shoulder screw with 0.5 mm coarse pitch thread is engineered to address common industrial challenges such as misalignment and component wear. The 18-8 stainless steel material provides excellent resistance to rust and corrosion, making it suitable for machinery, automotive assemblies, and electronic enclosures exposed to moisture or chemicals. The black oxide finish not only enhances aesthetics but also reduces friction and galling during repeated use. With a shoulder diameter of 4 mm and precise tolerances, it ensures accurate positioning of moving parts like gears and pulleys, minimizing vibration and extending equipment lifespan. The hex socket drive design facilitates quick installation in confined spaces, boosting productivity in high-volume manufacturing and maintenance operations.

Specification Summary & Compliance

This shoulder screw features a Class 5g6g thread fit per metric standards, ensuring dimensional accuracy and interchangeability. The shoulder diameter tolerance ranges from -0.072 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, adhering to strict manufacturing controls. It conforms to ISO 7379 specifications for consistent quality and performance. Additionally, the product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting global environmental and safety regulations for hazardous substance restrictions.