S-92185A364 1/2"-20 x 2 1/2" Super-Corrosion-Resistant 316 Stainless Steel Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction and passivated finish, ideal for harsh or chemical-exposed environments
• High tensile strength of 70,000 psi ensures reliable load-bearing capacity and resistance to mechanical failure in demanding applications
• Precision Class 3A thread fit provides tight, secure fastening with minimal backlash, enhancing assembly accuracy and vibration resistance
• Fine UNF thread design offers improved clamping force distribution and better sealing capabilities compared to coarse threads
• Partially threaded shank design allows for precise grip length control and reduced thread galling in high-stress applications
• 3/8" hex drive socket enables high-torque installation with standard tools while maintaining a low-profile head design
• Full regulatory compliance with RoHS 3 and REACH standards ensures environmental safety and global market acceptance

Professional Applications & Engineering Value

This 316 stainless steel socket head cap screw delivers exceptional performance in corrosive and high-stress environments where standard fasteners fail. The combination of UNF fine threads and Class 3A precision fit provides superior vibration resistance and clamping force consistency, making it ideal for precision machinery, marine equipment, chemical processing systems, and food processing applications. The passivated finish enhances the natural corrosion resistance of 316 stainless steel, while the partially threaded design prevents thread damage during repeated assembly/disassembly cycles. With 70,000 psi tensile strength and Rockwell B70 hardness, this fastener maintains structural integrity under heavy loads and thermal cycling, reducing maintenance frequency and downtime in industrial operations.

Specification Summary & Compliance

This socket head cap screw features a 1/2"-20 UNF fine thread with Class 3A thread fit precision, ensuring tight tolerances and reliable performance. Manufacturing adheres to UNF thread standards with a right-hand thread direction and standard socket head profile. The fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental and safety requirements for industrial components. With dimensions including 2½" length, ¾" head diameter, and 1½" minimum thread length, this screw delivers consistent performance across demanding applications.