S-92190A119 3/8"-16 x 2" ASME B18.2.1, SAE J429 Left-Hand Threaded Medium-Strength Grade 5 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 110,000 PSI ensures reliable performance in high-stress applications
• Left-hand UNC coarse threading provides secure fastening in specialized machinery and reverse-rotation systems
• Grade 5 steel construction with Rockwell C21 hardness delivers superior durability and wear resistance
• Class 2A thread fit guarantees precise dimensional accuracy and smooth assembly operations
• Full threading along the 2" length enables maximum grip and load distribution across the entire fastener
• External hex drive design allows for easy installation and removal with standard tools
• Comprehensive compliance with ASME, SAE, RoHS 3, and REACH standards ensures quality and environmental safety

Professional Applications & Engineering Value

This Grade 5 steel hex head screw with left-hand UNC coarse threading is engineered to solve critical fastening challenges in demanding industrial environments. The combination of 110,000 PSI tensile strength and Rockwell C21 hardness provides exceptional resistance to vibration loosening and mechanical stress, making it ideal for heavy machinery, automotive assemblies, and equipment requiring reverse-thread security. The fully threaded design ensures maximum engagement in thick materials, while the external hex drive facilitates quick maintenance and disassembly. These industrial hex screws maintain reliability in applications where standard right-hand threads would compromise safety or performance.

Specification Summary & Compliance

Manufactured to precise Class 2A thread fit tolerances with 3/8"-16 UNC coarse threading and 2" length. Complies with ASME B18.2.1 and SAE J429 specifications for dimensional accuracy and mechanical properties. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for hazardous substance restrictions.