S-90265A439 M16 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments and extended service life.
• Exceptional mechanical strength offering a tensile strength of 70,000 psi and a shear strength of 45,000 psi for high-stress applications.
• Precise component location and alignment enabled by the 55mm shoulder with controlled length and diameter tolerances.
• Secure and non-slip installation facilitated by the knurled head and 10mm hex socket drive, allowing for high torque application.
• Reliable and standardized threading with a Class 5g6g fit and coarse M16x2mm pitch for robust assembly and vibration resistance.
• Guaranteed quality and material safety through compliance with ISO 7379, RoHS 3, and REACH standards.
• Optimized for durability with a Rockwell B83 hardness, providing excellent wear resistance.

Professional Applications & Engineering Value

This M16 shoulder screw is engineered to address critical challenges in industrial assembly, such as precise shaft positioning and bearing retention. The 18-8 Stainless Steel material ensures long-term reliability in corrosive or wash-down environments, while the 55mm shoulder length with tight tolerances acts as a precise pivot or spacer, eliminating the need for additional components and reducing assembly errors. The coarse thread and Class 5g6g thread fit provide a strong, vibration-resistant connection, essential for machinery and equipment subject to dynamic loads. The combination of a knurled head and hex socket drive ensures a secure grip during installation, preventing tool slippage and damage in high-torque scenarios, making it a vital precision shoulder screw for demanding engineering applications.

Specification Summary & Compliance

This metric shoulder screw features an M16x2mm coarse thread with a Class 5g6g thread fit per ISO standards. The shoulder diameter is 20 mm with a tolerance of -0.072 to -0.01 mm, and the shoulder length is 55 mm with a tolerance of 0 to 0.25 mm, ensuring high dimensional accuracy. Manufacturing and material quality are governed by ISO 7379. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental responsibility.