S-92620A857 3/4"-10 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
- Exceptional load-bearing capacity with 150,000 psi tensile strength, ideal for high-stress structural and machinery applications.
- Superior corrosion resistance from zinc yellow-chromate plating, extending service life in harsh industrial environments.
- Reliable fastening performance with fully threaded UNC coarse thread design, ensuring secure engagement and vibration resistance.
- High-strength Grade 8 classification and Rockwell C33 hardness for consistent durability under heavy-duty conditions.
- Precise Class 2A thread fit for smooth assembly and reduced risk of cross-threading during installation.
- Optimized external hex drive with 1 1/8" head width, providing superior torque transmission and tool compatibility.
- Compliance with ASME B18.2.1 and SAE J429 standards, guaranteeing dimensional accuracy and material quality for industrial use.
Professional Applications & Engineering Value
Engineered for demanding industrial environments, this Grade 8 hex head screw delivers robust performance in heavy machinery, construction equipment, and structural assemblies. The steel construction combined with zinc yellow-chromate plating effectively combats rust and corrosion, reducing maintenance frequency in exposed or high-moisture settings. Its 3/4"-10 UNC coarse thread and fully threaded design ensure maximum grip and load distribution, preventing loosening under dynamic loads. The external hex drive facilitates efficient installation with standard tools, while the Class 2A thread fit maintains precise tolerances for reliable, repeatable fastening in critical applications.
Specification Summary & Compliance
This hex head screw features a 3/4"-10 UNC coarse thread with Class 2A thread fit for standard industrial compatibility. It adheres to ASME B18.2.1 and SAE J429 specifications, ensuring dimensional consistency and material integrity. The fastener is manufactured from high-strength steel with a zinc yellow-chromate finish for enhanced corrosion protection, meeting common industry requirements for heavy-duty mechanical and structural applications.
