S-90124A628 3/8"-16 x 1 1/2" ASME B18.2.1, SAE J429 Steel Wire-Lockable Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc plating that protects against rust in demanding industrial environments
• Exceptional load-bearing capacity with Grade 5 classification and 120,000 psi tensile strength for heavy-duty applications
• Reliable thread engagement with UNC coarse threading that resists vibration loosening and simplifies installation
• Optimized mechanical performance with Rockwell C25 hardness providing excellent durability and wear resistance
• Secure fastening control through external hex drive design that enables high torque application with standard tools
• Precision manufacturing with Class 2A thread fit ensuring consistent performance and easy assembly
• Comprehensive compliance meeting ASME B18.2.1, RoHS 3, and REACH standards for quality assurance and environmental safety

Professional Applications & Engineering Value

This Grade 5 hex head screw delivers exceptional engineering value across industrial applications where reliability is non-negotiable. The zinc-plated steel construction provides essential corrosion protection for machinery, structural assemblies, and equipment exposed to harsh conditions. The 3/8"-16 UNC coarse threading offers superior resistance to vibration-induced loosening, making it ideal for automotive, construction, and manufacturing applications. With partial threading design, it provides optimal clamping force distribution while the external hex drive ensures maximum torque transfer during installation. These industrial hex bolts solve critical fastening challenges by combining high tensile strength with precise manufacturing tolerances, reducing maintenance frequency and ensuring long-term joint integrity in demanding environments.

Specification Summary & Compliance

Manufactured to precise inch system dimensions with Class 2A thread fit tolerance for consistent performance. The UNC coarse thread pattern follows standardized specifications while the 1½" length and 3/8"-16 thread size provide versatile fastening solutions. Compliant with ASME B18.2.1 and SAE J429 manufacturing standards, ensuring dimensional accuracy and mechanical properties. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming the absence of restricted hazardous substances for safe industrial use worldwide.