S-97832A122 3/8"-16 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments and washdown applications.
• Exceptional mechanical strength offering 70,000 psi tensile strength and 35,000 psi shear strength for reliable performance in high-stress assemblies.
• Precision alignment and location enabled by the 1/2" shoulder diameter with tight tolerances, ensuring accurate component positioning.
• Secure and easy installation with a hex socket drive and knurled head, providing excellent grip and preventing tool slippage during torque application.
• Robust thread engagement with Class 3A UNC coarse threads, ensuring a secure, vibration-resistant fit for demanding applications.
• Enhanced durability and longevity from Rockwell B55 hardness, resisting wear and deformation over extended use cycles.
• Guaranteed quality and safety through compliance with ASME B18.3, RoHS 3, and REACH standards, meeting rigorous industrial and environmental regulations.

Professional Applications & Engineering Value

This 3/8"-16 UNC shoulder screw is engineered to solve critical alignment and pivot point challenges in precision machinery. The 18-8 stainless steel body provides excellent resistance to rust and corrosion, making it suitable for food processing, medical equipment, and outdoor applications. The precisely machined 1/2" shoulder diameter acts as a built-in spacer or bearing surface, eliminating the need for additional components and reducing assembly time. The socket head with hex drive allows for high-torque installation in confined spaces, while the knurled texture enhances grip for manual adjustments. Its Class 3A thread fit and coarse thread spacing ensure rapid assembly and a secure hold, preventing loosening under vibration in industrial automation and heavy-duty equipment.

Specification Summary & Compliance

This shoulder screw features a 3/8"-16 UNC thread with a Class 3A fit for superior thread engagement. The shoulder diameter is held to a tight tolerance of -0.004" to -0.002", and the shoulder length to -0.005" to 0.005", ensuring high dimensional accuracy. Manufacturing and quality are governed by the ASME B18.3 specification. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations.