S-92620A725 1/2"-13 x 1 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
- Exceptional load-bearing capacity with 150,000 psi tensile strength for reliable performance in high-stress environments
- Superior corrosion resistance provided by zinc yellow-chromate plating, extending service life in demanding conditions
- Optimized thread engagement through Class 2A thread fit ensuring precise installation and vibration resistance
- Enhanced durability from Rockwell C33 hardness maintaining structural integrity under repeated stress
- Quick installation capability with external hex drive design allowing for efficient assembly with standard tools
- Industry-standard compliance meeting ASME B18.2.1 and SAE J429 specifications for guaranteed quality and interchangeability
- Full-threaded design providing maximum grip length and uniform stress distribution across the entire fastener
Professional Applications & Engineering Value
These Grade 8 hex head screws deliver critical performance where structural integrity cannot be compromised. The combination of high-strength steel and zinc yellow-chromate plating addresses common industrial challenges including corrosion-induced failure and stress relaxation in heavy machinery, construction equipment, and automotive assemblies. The UNC coarse thread configuration ensures rapid installation while maintaining holding power in vibration-prone applications. With fully threaded design and external hex drive, these fasteners provide uniform clamping force and accessibility in confined spaces, making them ideal for critical joints in structural frameworks, industrial machinery, and transportation equipment requiring dependable, high-strength fastening solutions.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2A thread fit tolerance for consistent performance. These 1/2"-13 UNC coarse thread screws comply with ASME B18.2.1 and SAE J429 specifications, ensuring dimensional accuracy and mechanical properties. The fasteners meet industry standards for material composition and plating thickness, providing reliable performance in demanding industrial applications where quality assurance and specification compliance are paramount.
