S-94731A500 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 and extended service life.
• Enhanced load-bearing capacity from the 1/2" shoulder diameter, providing precise alignment and acting as a reliable pivot or axle.
• High-strength performance with 70,000 psi tensile strength and 35,000 psi shear strength, ensuring reliability under significant mechanical stress.
• Efficient installation and removal via the external hex drive and smooth hex head, allowing for high torque application with standard tools.
• Secure and consistent threading with Class 2A fit UNC coarse threads, facilitating quick assembly and reducing cross-threading risks.
• Precision dimensional stability with tightly controlled shoulder length and diameter tolerances for accurate positioning in assemblies.
• Compliance with environmental regulations including RoHS 3 and REACH, ensuring safety and suitability for global markets.

Professional Applications & Engineering Value

This 3/8"-16 UNC shoulder screw is engineered to solve critical alignment and rotational movement challenges in industrial machinery. The 18-8 stainless steel material offers excellent resistance to rust and corrosion, making it suitable for demanding environments like food processing, packaging equipment, and automotive assemblies. The 1/2" shoulder diameter provides a precise bearing surface, eliminating the need for separate spacers or bushings, which reduces assembly time and potential failure points. Combined with the external hex drive and coarse threads, it ensures robust, secure fastening in high-vibration applications, enhancing overall equipment durability and reducing maintenance cycles.

Specification Summary & Compliance

This shoulder screw features a 3/8"-16 UNC thread with a Class 2A fit for standard assembly clearance. The shoulder diameter is 1/2" with a tolerance of -0.004" to 0", and the shoulder length is 1-7/8" with a tolerance of -0.005" to 0.005". It is manufactured from 18-8 Stainless Steel with a hardness of Rockwell B55. The product is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations.