S-95373A187 1/2"-13 x 1 1/2" ASME B18.2.1, ASTM A307 Low-Strength Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance through hot-dipped galvanized finish for long-lasting performance in harsh environments
• Superior load-bearing capability with 60,000 psi tensile strength ensuring reliable fastening in heavy-duty applications
• Optimized thread engagement with Class 2A UNC coarse threads providing secure installation and vibration resistance
• Enhanced durability from Rockwell B69 hardness steel construction resisting deformation under stress
• Full-threaded design offering maximum grip length and consistent clamping force throughout the entire fastener
• Standard-compliant reliability meeting ASME B18.2.1 and ASTM A307 specifications for consistent quality
• Environmental compliance with RoHS 3 and REACH regulations ensuring safe usage across global markets

Professional Applications & Engineering Value

This 1/2"-13 UNC hex head screw delivers exceptional engineering value through its hot-dipped galvanized steel construction that provides superior corrosion protection in demanding industrial environments. The coarse thread design ensures rapid installation and reliable performance in structural applications, while the external hex drive facilitates high-torque installation with standard tools. The combination of 60,000 psi tensile strength and Rockwell B69 hardness makes these fully threaded screws ideal for heavy machinery, construction frameworks, and industrial equipment where vibration resistance and long-term reliability are critical. The Class 2A thread fit guarantees consistent performance across multiple installations, reducing maintenance costs and downtime in professional applications.

Specification Summary & Compliance

This hex head screw features precise Class 2A thread fit with UNC coarse threading (1/2"-13) and meets ASME B18.2.1 dimensional standards under ASTM A307 manufacturing specifications. The fastener maintains full compliance with RoHS 3 (2015/863/EU) restrictions and REACH (EC 1907/2006) regulations, ensuring environmental safety and market accessibility. With right-hand thread direction and fully threaded design, it delivers consistent performance across industrial applications requiring reliable, high-strength fastening solutions.