S-92865A219 3/8"-24 x 1 1/2" ASME B18.2.1, SAE J429 Medium-Strength Grade 5 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior tensile strength of 120,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure
• Zinc plating provides excellent corrosion resistance, extending service life in demanding industrial environments
• Grade 5 steel construction with Rockwell C25 hardness offers optimal balance of strength and durability for repeated use
• Class 2A thread fit with UNF fine threading delivers precise engagement and vibration resistance in critical assemblies
• External hex drive design allows for easy installation and removal with standard tools, improving maintenance efficiency
• Full threading along the 1-1/2" length provides maximum grip and load distribution across the entire fastener
• Compliance with major industry standards including ASME B18.2.1 and SAE J429 ensures consistent quality and interoperability

Professional Applications & Engineering Value

This Grade 5 steel hex head screw addresses critical engineering challenges in industrial fastening applications where vibration resistance and consistent clamping force are paramount. The 3/8"-24 UNF fine thread configuration provides superior holding power in machinery, automotive assemblies, and structural frameworks where coarse threads might compromise joint integrity. The zinc plating surface treatment offers essential protection against environmental corrosion in manufacturing facilities, outdoor equipment, and marine-adjacent applications. Engineers specify these fully threaded fasteners for applications requiring uniform stress distribution across the entire engagement length, particularly in heavy-duty equipment and precision assemblies where Class 2A thread fit ensures predictable installation torque values and reliable performance throughout the product lifecycle.

Specification Summary & Compliance

This fastener maintains Class 2A thread fit tolerance per UNF specifications with 3/8"-24 fine threading and right-hand thread direction. Manufacturing complies with ASME B18.2.1 and SAE J429 Grade 5 standards for dimensional accuracy and mechanical properties. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting current environmental regulations for industrial components.