S-92196A351 5/16"-24 x 3 1/2" ASME B18.3 18-8 Stainless Steel Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and long-term reliability.
• Exceptional tensile strength rated at 70,000 psi, providing secure and durable fastening under high-stress conditions.
• Precise Class 3A thread fit ensures tight tolerances and reliable engagement in critical assemblies.
• Fine UNF threads offer improved adjustment and vibration resistance compared to coarse threads.
• Partially threaded design allows for unthreaded shank sections, providing enhanced shear strength and alignment.
• 1/4" hex drive socket head enables high-torque installation with standard tools, reducing stripping risk.
• Compliance with ASME B18.3, RoHS 3, and REACH guarantees adherence to industry standards and environmental regulations.

Professional Applications & Engineering Value

This 18-8 stainless steel socket head cap screw is engineered for precision machinery, automotive assemblies, and industrial equipment where corrosion resistance and high tensile strength are critical. The 5/16"-24 UNF fine thread with Class 3A fit minimizes backlash and provides superior vibration resistance in dynamic applications. Its partially threaded configuration enhances structural integrity by allowing an unthreaded portion to bear shear loads, reducing thread wear. The Rockwell B70 hardness ensures durability against deformation, making it suitable for repetitive disassembly and high-torque scenarios. Ideal for aerospace, marine, and manufacturing sectors, this fastener delivers reliable performance in demanding environments while meeting stringent ASME B18.3 specifications.

Specification Summary & Compliance

This socket head cap screw features a 5/16"-24 UNF fine thread with Class 3A precision fit, ensuring tight dimensional accuracy per ASME standards. The partially threaded rod has a minimum thread length of 1.38" and a total length of 3 1/2". It complies with ASME B18.3 manufacturing specifications, RoHS 3 (2015/863/EU) for restricted hazardous substances, and REACH (EC 1907/2006) regulations, confirming environmental and safety adherence for industrial use.