S-90124A714 1/2"-13 x 1 1/4" ASME B18.2.1, SAE J429 Steel Wire-Lockable Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with 120,000 psi tensile strength for reliable performance in demanding applications
• Superior corrosion resistance provided by zinc-plated steel coating, extending service life in harsh environments
• Optimized installation efficiency through UNC coarse threading and Class 2A fit, ensuring quick assembly with standard tools
• Enhanced torque transmission via external hex drive and 3/4" head width, preventing stripping during high-torque applications
• Consistent mechanical properties guaranteed by Rockwell C25 hardness and Grade 5 certification, maintaining structural integrity
• Full-length thread engagement across the entire 1-1/4" length, providing maximum holding power in various material thicknesses
• Regulatory compliance assurance meeting ASME B18.2.1, SAE J429 standards while being RoHS 3 and REACH compliant

Professional Applications & Engineering Value

This Grade 5 hex head screw delivers critical engineering solutions for industrial assembly challenges where vibration resistance and structural integrity are paramount. The zinc-plated steel construction provides essential corrosion protection for outdoor equipment, machinery frames, and structural steel connections exposed to environmental elements. The UNC coarse thread design ensures rapid installation in steel, aluminum, and cast iron components while maintaining secure fastening in high-vibration environments. With its external hex drive and substantial head width, this fastener withstands high torque applications common in construction, heavy equipment manufacturing, and transportation industries. The combination of 120,000 psi tensile strength and Rockwell C25 hardness makes it ideal for critical joints in structural frameworks, machinery bases, and load-bearing assemblies where failure is not an option.

Specification Summary & Compliance

This industrial fastener maintains precision Class 2A thread fit tolerances with 1/2"-13 UNC coarse threading and full thread coverage. Manufactured to exacting ASME B18.2.1 and SAE J429 Grade 5 specifications, it ensures dimensional consistency and mechanical performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, containing no restricted substances. With right-hand thread direction and 0.109" hole diameter compatibility, this fastener delivers reliable performance across industrial applications while meeting international quality and safety standards.