S-92198A904 7/8"-9 x 11" ASME B18.2.1 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 industrial environments
• High tensile strength of 80,000 psi ensures reliable performance under heavy loads and vibration
• Coarse UNC threading with Class 2A fit provides faster assembly and reduced cross-threading risk
• External hex drive design allows for high-torque installation with standard tools
• Partial threading configuration offers optimal grip length while minimizing material usage
• Full compliance with ASME B18.2.1 standards guarantees dimensional accuracy and interchangeability
• Environmental regulation compliance with RoHS 3 and REACH ensures safe, sustainable manufacturing

Professional Applications & Engineering Value

These 18-8 stainless steel hex head screws deliver exceptional engineering value in demanding industrial applications where corrosion resistance and high tensile strength are critical. The coarse UNC threading (7/8"-9) combined with Class 2A thread fit ensures rapid installation in structural steel, heavy machinery, and construction projects where vibration resistance is paramount. The partial threading design provides maximum clamping force while reducing weight and material costs. With Rockwell B70 hardness and 80,000 psi tensile strength, these external hex drive screws withstand extreme mechanical stress in marine, chemical processing, and outdoor infrastructure applications where environmental factors would compromise inferior fasteners.

Specification Summary & Compliance

This 11-inch hex head screw features precise Class 2A thread fit with 7/8"-9 UNC coarse threading and 2 1/4" minimum thread length. Manufactured to ASME B18.2.1 specifications for dimensional accuracy and mechanical properties. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets.