S-90696A259 7/8"-9 x 6 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 industrial environments and outdoor applications
• Exceptional mechanical strength offering 70,000 psi tensile strength and Rockwell B70 hardness for heavy-duty, high-stress applications
• Precise Class 3A thread fit ensures reliable engagement and vibration resistance in critical assemblies
• Optimized torque transmission through 3/4" hex drive design, preventing cam-out and tool slippage during installation
• Versatile partial threading allows for both secure clamping and smooth adjustment in complex mechanical systems
• Industry-standard compliance with ASME B18.3 specifications guarantees dimensional accuracy and interchangeability
• Environmental regulation compliance with RoHS 3 and REACH standards for global manufacturing and export requirements

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these socket head cap screws deliver critical performance where standard fasteners fail. The 18-8 stainless steel composition provides excellent corrosion resistance in chemical processing, marine, and food equipment applications, while the 7/8"-9 UNC coarse thread design ensures rapid assembly and disassembly in maintenance-heavy environments. The partially threaded configuration offers dual functionality - the threaded portion provides secure fastening while the unthreaded shank maintains alignment in precision machinery. With 3/4" hex drive compatibility, these screws withstand high torque applications without stripping, making them ideal for heavy machinery, structural steel connections, and industrial equipment requiring Class 3A thread fit precision for vibration-resistant performance.

Specification Summary & Compliance

This socket head cap screw features precision Class 3A thread fit with 7/8"-9 UNC coarse thread specifications, manufactured to exact ASME B18.3 dimensional standards. The fastener maintains compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial applications. Manufactured in the inch system with right-hand thread direction, this 6 1/2" length screw with 2 1/4" minimum thread length delivers consistent performance across industrial and construction applications requiring reliable, high-strength fastening solutions.