S-90124A720 1/2"-13 x 2" ASME B18.2.1, SAE J429 Steel Wire-Lockable Hex Head Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with zinc-plated steel coating, extending service life in demanding environments
• Superior load-bearing capacity with Grade 5 classification and 120,000 psi tensile strength for heavy-duty applications
• Reliable thread engagement through UNC coarse threading and Class 2A fit, ensuring secure fastening in industrial assemblies
• Optimized torque transmission with external hex drive and 3/4" head width, enabling efficient installation with standard tools
• Controlled thread distribution via partially threaded design, preventing over-tightening in precision applications
• Consistent mechanical performance backed by Rockwell C25 hardness, maintaining structural integrity under vibration
• Regulatory compliance assurance meeting ASME B18.2.1, SAE J429, RoHS 3, and REACH standards for global industrial use

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, these Grade 5 hex head screws deliver critical performance where vibration resistance and structural integrity are paramount. The zinc-plated steel construction provides essential corrosion protection in manufacturing facilities, agricultural equipment, and construction machinery. The 1/2"-13 UNC coarse thread configuration ensures rapid assembly in steel framing, machinery bases, and structural connections, while the partially threaded design concentrates clamping force precisely where needed. With external hex drive compatibility, maintenance teams achieve proper torque application using standard wrenches, reducing installation time and improving workplace efficiency. These industrial fasteners solve common engineering challenges including joint slippage, material fatigue, and environmental degradation.

Specification Summary & Compliance

This hex head screw maintains Class 2A thread fit tolerances per UNC standards with precise 1/2"-13 coarse thread spacing. Manufacturing complies with ASME B18.2.1 and SAE J429 specifications for dimensional accuracy and mechanical properties. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance requirements, ensuring safe usage across regulated industries. With 2" length and 1 1/4" minimum thread length, the fastener provides consistent performance in standardized applications.