S-92620A535 1/4"-20 x 3/8" 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 capacity with 150,000 psi tensile strength for critical structural applications
- Superior corrosion resistance through zinc yellow-chromate plating that withstands harsh industrial environments
- Enhanced durability with Rockwell C33 hardness to prevent deformation under extreme pressure
- Reliable thread engagement through Class 2A thread fit ensuring consistent fastening performance
- Quick installation and removal with external hex drive design for efficient maintenance operations
- Optimal material compatibility with fully threaded UNC coarse pattern for secure connections in various materials
- Industry compliance assurance meeting ASME B18.2.1 and SAE J429 specifications for quality and safety
Professional Applications & Engineering Value
These Grade 8 hex head screws deliver exceptional engineering value in demanding industrial environments where failure is not an option. The combination of high-strength steel material and zinc yellow-chromate plating addresses common challenges of structural integrity and environmental degradation. The UNC coarse thread configuration ensures rapid assembly while maintaining vibration resistance in heavy machinery, construction equipment, and automotive applications. The external hex drive provides superior torque transmission for secure fastening in high-stress joints. With fully threaded design and Class 2A thread fit, these screws maintain consistent clamping force across the entire engagement length, preventing loosening in dynamic load conditions common in manufacturing and assembly operations.
Specification Summary & Compliance
This 1/4"-20 x 3/8" hex head screw features precision Class 2A thread fit with UNC coarse thread spacing for optimal engagement. Manufactured to exacting ASME B18.2.1 dimensional standards and SAE J429 material specifications, ensuring consistent quality and performance. The fastener maintains right-hand thread direction with external hex drive configuration. Compliant with industry standards for heavy-duty applications, this product meets relevant material and performance requirements for industrial and construction use.
