S-90269A500 M4 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh chemical and marine environments
• Enhanced durability and wear resistance from the black oxide finish, providing long-lasting performance
• Precise component alignment enabled by the 5mm shoulder diameter with tight tolerance control
• High mechanical strength with 70,000 psi tensile and 35,000 psi shear strength for demanding applications
• Secure and non-slip installation thanks to the knurled head and 2.5mm hex drive for reliable torque transmission
• Accurate and consistent threading with Class 5g6g metric coarse thread (M4 x 0.7mm) ensuring proper fit
• Compliance with environmental regulations including RoHS 3 and REACH, supporting global supply chain requirements

Professional Applications & Engineering Value

This M4 shoulder screw is engineered to address critical alignment and mounting challenges in precision assemblies. The 316 stainless steel material offers excellent resistance to corrosion and oxidation, making it suitable for applications in chemical processing, marine equipment, and food machinery where exposure to moisture and aggressive substances is common. The black oxide finish not only enhances aesthetic appeal but also adds a protective layer that reduces galling and wear during repeated use. The 5mm shoulder diameter and 19mm shoulder length provide a stable pivot or spacer, ensuring components remain accurately positioned without misalignment. Combined with the Class 5g6g thread fit, this metric shoulder bolt delivers reliable performance in automated systems, robotics, and precision instruments, reducing assembly time and maintenance costs.

Specification Summary & Compliance

This shoulder screw features a metric thread size M4 x 0.7mm with Class 5g6g thread fit for consistent engagement. The shoulder diameter tolerance is -0.072 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, ensuring precise dimensional control. Manufactured from 316 stainless steel with a black oxide finish, it complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmentally responsible sourcing and usage in industrial applications.