S-90124A847 3/4"-10 x 3" 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 torque transmission through external hex drive design for secure installation and removal
• Enhanced thread engagement with UNC coarse threading and Class 2A fit for faster assembly and vibration resistance
• Controlled hardness properties at Rockwell C25 to prevent brittleness while maintaining structural integrity
• Regulatory compliance assurance meeting industrial standards including ASME B18.2.1 and SAE J429
• Environmental responsibility through RoHS 3 and REACH compliance for sustainable manufacturing practices

Professional Applications & Engineering Value

This Grade 5 hex head screw delivers critical engineering solutions for heavy-duty industrial applications where structural integrity is paramount. The zinc-plated steel construction provides essential corrosion protection in manufacturing environments, while the 3/4"-10 UNC coarse threading ensures rapid assembly in time-sensitive production scenarios. The partially threaded design concentrates strength where needed most, preventing stress concentration in non-critical sections. With external hex drive compatibility, these fasteners integrate seamlessly with standard industrial tools, reducing installation time and labor costs. The combination of 120,000 psi tensile strength and Rockwell C25 hardness creates an optimal balance between durability and machinability, making these hex head screws ideal for construction equipment, machinery frames, and structural steel connections where vibration resistance and long-term reliability are essential.

Specification Summary & Compliance

This 3/4"-10 hex head screw features precise Class 2A thread fit tolerances with UNC coarse thread spacing and right-hand threading. Manufacturing specifications strictly adhere to ASME B18.2.1 and SAE J429 Grade 5 standards, ensuring dimensional accuracy and mechanical performance. The fastener demonstrates full compliance with RoHS 3 (2015/863/EU) restrictions and REACH (EC 1907/2006) regulations, confirming environmental responsibility and material safety for industrial applications worldwide.