S-92190A155 5/8"-11 x 1 1/2" ASME B18.2.1, SAE J429 Left-Hand Threaded Medium-Strength Grade 5 Steel Hex Head Screws
Left-Hand Threaded Medium-Strength Grade 5 Steel Hex Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior load-bearing capacity with 110,000 psi tensile strength for reliable performance in demanding applications
- Exceptional durability thanks to Grade 5 steel construction and Rockwell C21 hardness rating
- Secure anti-loosening performance from left-hand thread direction in high-vibration environments
- Quick installation and removal with external hex drive and 15/16" head width for standard wrench compatibility
- Optimized thread engagement through UNC coarse threading and Class 2A fit for faster assembly
- Full-length thread coverage ensures maximum grip strength across the entire 1 1/2" length
- Regulatory compliance assurance meeting both industry standards and environmental regulations
Professional Applications & Engineering Value
This Grade 5 steel hex head screw delivers exceptional engineering value in industrial settings where reverse-rotation forces are present. The left-hand UNC coarse threads provide critical anti-loosening protection in machinery subject to counter-clockwise motion or vibration, while the external hex drive enables high-torque installation with standard tools. The fully threaded design ensures maximum clamping force distribution across the entire 1 1/2" length, making it ideal for heavy equipment, automotive assemblies, and industrial machinery requiring reliable fastener performance under substantial mechanical stress. The combination of 110,000 psi tensile strength and precise Class 2A thread fit guarantees consistent performance in critical applications where fastener failure is not an option.
Specification Summary & Compliance
This 5/8"-11 UNC hex head screw features precise Class 2A thread fit tolerances and complies with ASME B18.2.1 manufacturing specifications where identified with SAE J429 standards. The fastener meets RoHS 3 (2015/863/EU) compliance for hazardous substance restrictions and REACH (EC 1907/2006) regulations regarding chemical substances, ensuring environmental responsibility in industrial applications while maintaining the mechanical properties required for Grade 5 performance classification.
