S-95373A184 1/2"-13 x 1 1/4" ASME B18.2.1, ASTM A307 Low-Strength Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with hot-dipped galvanized finish for long-lasting performance in harsh environments
• Superior load-bearing capability with 60,000 psi tensile strength and Rockwell B69 hardness for demanding applications
• Optimized fastening efficiency through fully threaded UNC coarse thread design providing maximum holding power
• Precise installation control with external hex drive and Class 2A thread fit ensuring reliable, consistent engagement
• Enhanced durability in industrial settings with robust steel construction and right-hand thread orientation
• Comprehensive compliance assurance meeting ASME B18.2.1, ASTM A307 standards and RoHS 3 regulations
• Versatile 1-1/4" length accommodating various material thicknesses while maintaining full thread engagement

Professional Applications & Engineering Value

These hot-dipped galvanized steel hex head screws deliver exceptional engineering value in demanding industrial environments where corrosion resistance and structural integrity are paramount. The hot-dipped galvanized finish provides superior protection against rust and environmental degradation, making them ideal for outdoor construction, marine applications, and chemical processing facilities. The UNC coarse thread design ensures rapid installation and superior resistance to vibration loosening, while the fully threaded configuration maximizes grip length across varied material thicknesses. Engineered to ASTM A307 specifications with 60,000 psi tensile strength, these hex head screws provide reliable performance in structural connections, machinery assembly, and heavy equipment applications where failure is not an option.

Specification Summary & Compliance

This 1/2"-13 x 1-1/4" hex head screw features precision Class 2A thread fit with UNC coarse thread spacing, ensuring consistent engagement and reliable performance. Manufactured to exacting ASME B18.2.1 dimensional standards and ASTM A307 material specifications, the fastener delivers guaranteed mechanical properties and dimensional accuracy. The product is fully RoHS 3 (2015/863/EU) compliant, meeting international environmental regulations while maintaining the high-performance characteristics required for industrial applications. The combination of right-hand thread direction and external hex drive provides industry-standard installation compatibility across various applications.