S-92198A124 1/2"-13 x 1 3/8" 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
• Exceptional mechanical strength with 80,000 psi tensile strength for heavy-duty load-bearing applications
• Optimized thread engagement through UNC coarse threading and Class 2A fit for reliable fastening in various materials
• Enhanced torque transmission with external hex drive and 3/4" head width for secure installation
• Reduced material stress through partially threaded design that minimizes thread galling and improves fatigue resistance
• Long-term reliability supported by Rockwell B70 hardness for maintained performance under vibration
• Regulatory compliance assurance meeting ASME B18.2.1 standards and environmental regulations including RoHS 3 and REACH

Professional Applications & Engineering Value

This 1/2"-13 UNC hex head screw delivers critical engineering solutions where corrosion resistance and structural integrity are paramount. The 18-8 stainless steel composition provides excellent protection against rust and chemical exposure in marine, food processing, and outdoor applications. The coarse thread design ensures rapid installation and superior holding power in softer materials like aluminum or wood, while the partially threaded configuration concentrates clamping force precisely where needed. With external hex drive compatibility, these industrial hex screws accommodate standard tools for efficient assembly in confined spaces. The combination of 80,000 psi tensile strength and controlled thread engagement makes these heavy duty screws ideal for structural connections, machinery assembly, and equipment manufacturing where vibration resistance and long-term reliability are essential.

Specification Summary & Compliance

Manufactured to precise inch system dimensions with 1/2"-13 UNC coarse threads maintaining Class 2A thread fit tolerance for consistent performance. The partially threaded design provides 1-1/4" minimum thread length on a 1-3/8" overall length screw. Complies with ASME B18.2.1 manufacturing specifications and meets environmental standards including RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance for restricted substance control.