S-92620A748 1/2"-20 x 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
- Exceptional tensile strength of 150,000 PSI ensures reliable performance in high-stress industrial applications, reducing the risk of fastener failure.
- Superior corrosion resistance from zinc yellow-chromate plating extends service life in harsh environments, minimizing maintenance and replacement costs.
- Precision Class 2A thread fit with UNF fine pitch provides secure, vibration-resistant connections for critical assemblies.
- Grade 8 material certification guarantees consistent hardness (Rockwell C33) and durability, meeting rigorous SAE J429 standards.
- Full threading and external hex drive allow for easy installation and maximum grip across the entire 2" length, improving assembly efficiency.
- Compliance with ASME B18.2.1 specifications ensures dimensional accuracy and interchangeability, supporting standardized procurement and inventory management.
Professional Applications & Engineering Value
Engineered for demanding environments, this Grade 8 hex head screw combines high-strength steel with a zinc yellow-chromate finish to combat corrosion in industrial settings like machinery, construction, and automotive assemblies. The UNF fine thread and Class 2A fit deliver tight, reliable fastening that resists loosening under vibration, a common challenge in dynamic systems. With full threading and an external hex drive, it ensures uniform load distribution and straightforward installation, reducing assembly time while maintaining 150,000 PSI tensile strength for heavy-duty applications where safety and longevity are paramount.
Specification Summary & Compliance
This fastener adheres to ASME B18.2.1 and SAE J429 standards, with precise Class 2A thread fit and UNF fine thread specifications (1/2"-20 size). It meets industry requirements for dimensional accuracy and material properties, including RoHS and REACH compliance, ensuring suitability for global industrial use without compromising on performance or safety.
