S-92800A264 9/16"-12 x 2 1/4" 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and reducing maintenance costs
• High tensile strength of 80,000 psi ensures reliable load-bearing capacity and joint integrity in demanding applications
• Class 2A thread fit provides consistent assembly with standard nuts, minimizing cross-threading and improving installation efficiency
• External hex drive and hex head design allows for high-torque application using common tools, speeding up assembly and disassembly
• Partially threaded shank offers unthreaded grip length for better clamping force distribution and vibration resistance
• Coarse UNC threading enables quick engagement and reduced risk of stripping in softer materials or dirty conditions
• Compliance with RoHS 3 and REACH regulations ensures environmental safety and suitability for global industrial supply chains

Professional Applications & Engineering Value

This 9/16"-12 UNC hex head screw in 18-8 stainless steel is engineered to address common industrial challenges such as corrosion, vibration loosening, and high-stress fatigue. The coarse thread design allows for rapid installation in structural assemblies, machinery, and outdoor equipment, while the partially threaded configuration ensures that the unthreaded portion bears against joined materials, enhancing clamp load and resistance to dynamic forces. With a Rockwell B70 hardness and 80,000 psi tensile strength, it provides dependable performance in applications requiring durability and repeatable disassembly, such as construction frames, automotive components, and marine fixtures. The external hex drive facilitates secure tool engagement, reducing slippage and improving worker safety during high-torque fastening operations.

Specification Summary & Compliance

This screw adheres to UNC coarse thread standards with a Class 2A thread fit for consistent dimensional accuracy and interchangeability. Key specifications include a 9/16"-12 thread size, 2-1/4" length, and partial threading with a minimum thread length of 1-3/8". It is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for use in regulated industrial and international markets.