S-90696A169 4-48 x 1" 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 extended service life.
• Exceptional holding power from a high 70,000 psi tensile strength, ensuring reliable, vibration-resistant connections.
• Precise and secure fastening with a Class 3A thread fit, offering tighter tolerances for high-stakes assemblies.
• Optimized for fine adjustments using the 4-48 UNF fine thread, providing superior clamping force in delicate applications.
• Robust and durable performance backed by Rockwell B70 hardness, resisting wear and deformation under load.
• Easy installation in confined spaces with a standard socket head and 3/32" hex drive, allowing for high torque application.
• Compliance with major industry standards including ASME B18.3, ensuring interchangeability and reliability.

Professional Applications & Engineering Value

This 18-8 Stainless Steel Socket Head Cap Screw is engineered to solve critical challenges in precision industries. The 4-48 UNF fine thread and Class 3A thread fit provide superior vibration resistance and clamping force in applications where failure is not an option, such as aerospace components, medical devices, and high-precision machinery. The partially threaded design allows the unthreaded portion to act as a precise dowel, maintaining alignment. Combined with the corrosion-resistant properties of stainless steel, this fastener ensures long-term integrity and reduces maintenance cycles in demanding environments, delivering reliable performance and significant engineering value.

Specification Summary & Compliance

This screw features a 4-48 UNF fine thread with a Class 3A thread fit for high precision. It is manufactured to meet ASME B18.3 specifications and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safety and sustainability in industrial applications.