S-91283A460 1 1/2"-6 x 6" ASME B18.2.1, SAE J429 Medium-Strength Grade 5 Steel Hex Head Screws
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 100,000 psi tensile strength for reliable performance in demanding applications
- Enhanced durability and wear resistance thanks to Rockwell C19 hardness and Grade 5 steel construction
- Optimized thread engagement with UNC coarse threads and Class 2A fit for faster assembly and vibration resistance
- Secure external hex drive provides excellent torque transmission and prevents tool slippage during installation
- Partial threading design offers unthreaded shank strength where needed while maintaining full thread functionality
- Industry-standard compliance ensures interchangeability and reliability across industrial equipment and machinery
- Environmental regulation compliance with RoHS 3 and REACH for safe use in regulated industries
Professional Applications & Engineering Value
This Grade 5 hex head screw delivers exceptional engineering value for heavy machinery, structural steel connections, and industrial equipment assembly. The 1½"-6 UNC coarse thread configuration ensures rapid installation and superior resistance to vibrational loosening in high-stress environments. Manufactured from high-strength steel with Rockwell C19 hardness, this fastener maintains integrity under extreme loads while the partial threading provides maximum shank strength in shear-critical applications. The external hex drive accommodates standard industrial tools for efficient maintenance and assembly operations. Ideal for construction equipment, agricultural machinery, and industrial framing where ASME B18.2.1 compliance guarantees dimensional accuracy and reliable performance across standardized applications.
Specification Summary & Compliance
This 6" hex head screw features precise Class 2A thread fit tolerances with 1½"-6 UNC coarse threads and 3¼" minimum thread length. Manufactured to ASME B18.2.1 specifications meeting SAE J429 Grade 5 requirements, ensuring dimensional consistency and mechanical properties. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for hazardous substance restrictions. The inch system measurement provides compatibility with North American industrial standards and equipment specifications.
