S-91268A510 1 1/2"-6 x 11" ASME B18.2.1, SAE J429 High-Strength Grade 8 Steel Hex Head Screws
High-Strength Grade 8 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
- Maximum load-bearing capability with Grade 8 strength and 150,000 psi tensile strength for critical structural connections
- Superior wear resistance due to Rockwell C33 hardness, extending service life in high-vibration environments
- Optimized clamping force distribution through partially threaded design across the 11" length
- Quick installation and removal with external hex drive and coarse UNC threads
- Precise thread engagement ensured by Class 2A thread fit for consistent assembly performance
- Full regulatory compliance meeting ASME B18.2.1, SAE J429, RoHS 3, and REACH standards
- Heavy-duty construction with 2-1/4" hex head providing superior torque transmission
Professional Applications & Engineering Value
This Grade 8 hex head screw delivers exceptional engineering value for heavy machinery, structural steel connections, and industrial equipment assembly. The 1-1/2"-6 UNC coarse thread configuration ensures rapid installation while maintaining vibration resistance in dynamic load conditions. The partially threaded design concentrates clamping force precisely where needed, preventing joint loosening in high-stress applications. Manufactured from high-strength steel with Rockwell C33 hardness, this fastener withstands extreme mechanical stresses while maintaining dimensional stability. The external hex drive accommodates standard industrial tools, streamlining maintenance and assembly processes in construction, mining, and manufacturing environments where reliability is paramount.
Specification Summary & Compliance
This heavy-duty hex head screw features precise Class 2A thread fit with 1-1/2"-6 UNC coarse threading and right-hand thread direction. Manufacturing complies with ASME B18.2.1 and SAE J429 Grade 8 specifications, ensuring dimensional accuracy and mechanical performance. The fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making it suitable for global industrial applications requiring strict material compliance standards.
