S-92620A537 1/4"-20 x 1/2" 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 in harsh industrial environments
- Exceptional hardness and durability with Rockwell C33 rating for extended service life
- Reliable installation and removal with external hex drive design for secure tool engagement
- Precision thread fit with Class 2A UNC coarse threads for consistent mating performance
- Full threading coverage along the entire 1/2" length for maximum grip and holding power
- Comprehensive compliance meeting ASME B18.2.1 and SAE J429 specifications for quality assurance
Professional Applications & Engineering Value
This Grade 8 hex head screw delivers exceptional engineering value for heavy-duty industrial applications where failure is not an option. The combination of high-strength steel material and zinc yellow-chromate plating provides superior protection against corrosion while maintaining the 150,000 psi tensile strength required for structural connections. The 1/4"-20 UNC coarse thread configuration ensures rapid installation and reliable performance in vibration-prone environments, while the external hex drive allows for high-torque application without stripping. These fully threaded fasteners are engineered to solve critical challenges in construction, machinery assembly, and industrial equipment where maximum durability and consistent performance are paramount requirements.
Specification Summary & Compliance
This high-performance fastener features precision 1/4"-20 UNC threads with Class 2A fit for consistent mating and reliable performance. Manufactured to ASME B18.2.1 and SAE J429 Grade 8 specifications, it ensures dimensional accuracy and mechanical properties for industrial applications. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making it suitable for global industrial supply chains and environmentally conscious manufacturing operations.
