S-91273A205 3/8"-16 Shoulder Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments.
• Superior load-bearing capacity with 70,000 psi tensile strength and 35,000 psi shear strength for reliable performance under stress.
• Precise alignment and smooth rotation due to the 3/8" shoulder diameter and standard shoulder fit, reducing wear in machinery.
• Secure and efficient installation with a knurled hex socket head and 3/16" hex drive, minimizing slippage during tightening.
• Wide compatibility and easy assembly from the 3/8"-16 UNC coarse thread and Class 2A thread fit, ensuring quick fastening in various applications.
• Long-term durability supported by Rockwell B55 hardness, maintaining integrity in repetitive use.
• Environmental and regulatory safety with RoHS 3 and REACH compliance, meeting strict industry standards for hazardous substances.

Professional Applications & Engineering Value

This shoulder screw is engineered to address common industrial challenges, such as misalignment and component wear in rotating assemblies. The 18-8 stainless steel material provides excellent corrosion resistance, making it suitable for demanding environments like machinery, automotive, and aerospace applications. Its 3/8" shoulder diameter and precise standard shoulder fit ensure accurate positioning of parts, reducing friction and extending equipment life. The knurled socket head with a 3/16" hex drive enhances grip during installation, speeding up assembly while preventing tool slippage. Combined with a coarse UNC thread and right-hand thread direction, it offers reliable fastening in high-vibration settings, delivering consistent performance and reducing maintenance downtime.

Specification Summary & Compliance

This shoulder screw adheres to precise dimensional tolerances, including a Class 2A thread fit for consistent engagement and a shoulder diameter tolerance of -0.004" to -0.002". It meets industry standards for UNC thread type and is manufactured with 18-8 stainless steel for durability. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) ensures it is free from hazardous substances, supporting safe and sustainable use in various industrial applications.