S-92865A177 1/2"-13 x 1/2" ASME B18.2.1, SAE J429 Medium-Strength Grade 5 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional Load-Bearing Capacity - Grade 5 classification with 120,000 psi tensile strength ensures reliable performance in high-stress applications
• Superior Corrosion Protection - Zinc plating provides enhanced resistance to rust and environmental degradation
• Optimized Thread Engagement - Fully threaded UNC coarse design delivers maximum grip strength and vibration resistance
• Precision Thread Compatibility - Class 2A thread fit guarantees consistent mating with standard nuts and threaded components
• Robust Material Performance - Steel construction with Rockwell C25 hardness maintains structural integrity under heavy loads
• Efficient Installation - External hex drive with 3/4" head width allows for high-torque application using standard tools
• Industry Compliance Assurance - Meets critical standards for quality, safety, and environmental regulations

Professional Applications & Engineering Value

This Grade 5 hex head screw delivers exceptional engineering value through its high-strength steel construction and zinc plated finish, specifically designed to address common industrial fastening challenges. The 1/2"-13 UNC coarse thread configuration provides superior pull-out resistance in soft materials and faster installation times, while the fully threaded design ensures consistent clamping force distribution across the entire length. The external hex drive accommodates high torque applications without stripping, making it ideal for structural assemblies, machinery frames, and heavy equipment where vibration resistance and long-term reliability are critical. The combination of 120,000 psi tensile strength and Rockwell C25 hardness prevents thread deformation under extreme loads, solving durability concerns in demanding industrial environments.

Specification Summary & Compliance

This fastener maintains Class 2A thread fit tolerance for consistent mating with standard components and features 1/2"-13 UNC coarse threading per established industrial standards. Manufacturing complies with ASME B18.2.1 and SAE J429 specifications for dimensional accuracy and mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors while meeting international quality assurance requirements.