S-91268A520 1 1/2"-6 x 16" 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
- Exceptional load-bearing capacity with 150,000 psi tensile strength for reliable performance in high-stress applications
- Superior hardness and durability with Rockwell C33 rating to resist wear and deformation under heavy loads
- Secure fastening with coarse UNC threading providing excellent grip and vibration resistance in various materials
- Optimized torque transmission through external hex drive design for easy installation with standard tools
- Partial threading design allowing for precise clamping force distribution along the 16" length
- Environmental compliance assurance with RoHS 3 and REACH compliance for safe use in regulated industries
- Industry-standard compatibility meeting ASME B18.2.1 specifications for reliable interchangeability
Professional Applications & Engineering Value
This Grade 8 hex head screw delivers critical engineering solutions for heavy machinery, structural steel connections, and industrial equipment assembly. The 1 1/2"-6 UNC coarse threading with Class 2A fit ensures rapid installation and superior vibration resistance in demanding environments. Manufactured from high-strength steel with Rockwell C33 hardness, it withstands extreme mechanical stresses while maintaining integrity. The 16" length with partial threading provides optimal shank strength for applications requiring both clamping force and shear resistance. Ideal for construction, mining equipment, and heavy vehicle manufacturing where 150,000 psi tensile strength is essential for safety and longevity.
Specification Summary & Compliance
This heavy-duty hex head screw features precise Class 2A thread fit with 1 1/2"-6 UNC coarse threading and minimum 3 1/2" thread length. Manufactured to ASME B18.2.1 and SAE J429 Grade 8 specifications, ensuring dimensional accuracy and mechanical performance. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for industrial use.
