S-91273A208 3/8"-16 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments.
• Precise component alignment thanks to the 2 3/4" shoulder length with tight tolerances, reducing assembly errors.
• High mechanical strength with 70,000 psi tensile and 35,000 psi shear strength for demanding applications.
• Reliable thread engagement with UNC coarse threads and Class 2A fit, ensuring easy assembly and secure fastening.
• Secure, non-slip drive from the hex socket and knurled head, allowing for high torque application without stripping.
• Environmental compliance with RoHS 3 and REACH standards, making it safe for various regulated industries.
• Consistent durability backed by Rockwell B55 hardness, providing excellent wear resistance over time.

Professional Applications & Engineering Value

This 3/8"-16 UNC shoulder screw is engineered to address critical alignment and strength challenges in precision applications such as machinery assemblies, pivoting mechanisms, and rotating components. The 18-8 stainless steel material offers excellent corrosion resistance, while the 2 3/4" shoulder length with minimal tolerances ensures accurate part positioning, reducing wear and misalignment. The hex socket head with a knurled texture allows for secure, high-torque installation in confined spaces. With a coarse UNC thread and Class 2A fit, it facilitates quick assembly and reliable performance in industrial settings, enhancing operational efficiency and equipment longevity.

Specification Summary & Compliance

This shoulder screw features a 3/8"-16 UNC thread with Class 2A fit for standard tolerance, a shoulder diameter of 3/8" with a tolerance of -0.004" to -0.002", and a shoulder length of 2 3/4" with a tolerance of -0.005" to 0.005". It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for various industrial uses.