S-92198A252 1 1/4"-7 x 5" ASME B18.2.1 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional 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 quick assembly and secure fastening in various materials
• External hex drive and large 1 7/8" head allows for high-torque installation with standard tools
• Partial threading design offers optimal grip length while reducing weight and material usage
• Rockwell B70 hardness maintains thread integrity and prevents stripping during repeated use
• Full compliance with ASME B18.2.1 guarantees dimensional accuracy and interchangeability

Professional Applications & Engineering Value

This heavy-duty hex head screw delivers critical performance in demanding applications where corrosion resistance and structural integrity are paramount. The 18-8 Stainless Steel composition provides excellent protection against rust and chemical exposure in marine, chemical processing, and outdoor installations. The coarse UNC thread pattern ensures rapid installation in steel frameworks, machinery bases, and structural connections, while the partial threading design concentrates strength where needed most. With its external hex drive and substantial head size, contractors can apply significant torque without slippage, making it ideal for industrial fastening applications requiring both durability and ease of maintenance.

Specification Summary & Compliance

This 5" length hex head screw features 1 1/4"-7 UNC coarse threads with Class 2A thread fit for standard tolerance applications. Manufactured to ASME B18.2.1 specifications for dimensional consistency. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industries.