S-92620A731 1/2"-13 x 6" 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
- Optimized installation efficiency with external hex drive design for secure tool engagement
- Enhanced thread reliability with Class 2A UNC coarse threads preventing cross-threading
- Exceptional material durability from Grade 8 steel with Rockwell C33 hardness rating
- Full-threaded design advantage providing consistent clamping force along entire 6" length
- Industry standard compliance meeting ASME B18.2.1 and SAE J429 specifications
Professional Applications & Engineering Value
These Grade 8 hex head screws deliver critical performance in heavy-duty industrial applications where failure is not an option. The combination of 150,000 psi tensile strength and Rockwell C33 hardness ensures reliable performance in structural assemblies, machinery frames, and equipment manufacturing. The zinc yellow-chromate plating provides essential corrosion protection in demanding environments, while the UNC coarse threads and external hex drive enable rapid installation and removal in maintenance scenarios. Engineered for high-stress applications, these fully threaded steel fasteners maintain integrity under vibration and dynamic loading conditions common in construction, automotive, and industrial machinery sectors.
Specification Summary & Compliance
Manufactured to precise Class 2A thread fit tolerances with 1/2"-13 UNC coarse threads and right-hand threading orientation. Complies with ASME B18.2.1 and SAE J429 standards for dimensional accuracy and mechanical properties. Features include 6" length, fully threaded design, and external hex drive with 3/4" head width. The Grade 8 classification guarantees consistent performance meeting industrial requirements for high-strength fastening solutions.
