S-92185A753 1/2"-20 x 3" Super-Corrosion-Resistant 316 Stainless Steel Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments like marine or chemical processing.
• High tensile strength of 70,000 psi ensures reliable performance under heavy loads and vibration.
• Precise Class 3A thread fit provides excellent engagement and reduces the risk of cross-threading in critical assemblies.
• Partially threaded design allows for secure clamping while minimizing thread damage in non-threaded sections.
• Passivated finish enhances surface durability and provides additional protection against oxidation and wear.
• Fine UNF threads (1/2"-20) offer improved load distribution and better resistance to loosening compared to coarse threads.
• Compliance with RoHS 3 and REACH ensures environmental safety and meets global regulatory standards for industrial use.

Professional Applications & Engineering Value

This 316 stainless steel socket head cap screw is engineered to address common challenges in demanding industrial settings, such as exposure to corrosive agents and high-stress conditions. The fine UNF threads and Class 3A fit deliver superior clamping force and vibration resistance, making it ideal for precision machinery, automotive assemblies, and marine equipment. The partially threaded shank ensures that the unthreaded portion bears against the material, reducing stress concentration and preventing fatigue failure. With a passivated finish, it offers extended service life in aggressive environments, while the hex socket drive allows for high-torque installation without stripping. These features collectively enhance reliability and reduce maintenance needs in critical applications.

Specification Summary & Compliance

This socket head cap screw adheres to UNF thread standards with a Class 3A thread fit for high precision. Key dimensions include a 1/2"-20 thread size, 3" length with a partially threaded design, and a 3/8" hex drive. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances and suitable for global industrial use. The material hardness is Rockwell B70, and tensile strength is rated at 70,000 psi, confirming its durability and performance in heavy-duty applications.