S-92620A843 3/4"-10 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 load-bearing capacity with 150,000 psi tensile strength, ideal for high-stress structural and machinery applications.
- Superior corrosion resistance provided by zinc yellow-chromate plating, extending service life in harsh industrial environments.
- Reliable fastening performance due to Grade 8 steel construction and Rockwell C33 hardness, ensuring durability under heavy vibration and load.
- Easy installation and removal with external hex drive and coarse UNC threads, allowing for quick assembly with standard tools.
- Precise thread fit with Class 2A tolerance, ensuring consistent engagement and reducing the risk of cross-threading.
- Full threading along the 2" length offers maximum grip and adjustability in a wide range of material thicknesses.
- Compliance with major industry standards including ASME B18.2.1, ensuring interchangeability and reliability in professional applications.
Professional Applications & Engineering Value
This Grade 8 hex head screw is engineered to address critical challenges in heavy machinery, construction, and automotive assemblies where failure is not an option. The steel material and fully threaded UNC coarse thread design provide high clamp load and vibration resistance, preventing loosening in dynamic environments. The zinc yellow-chromate finish delivers robust protection against rust and chemical exposure, making it suitable for outdoor and industrial settings. With its external hex drive and 2" length, it ensures easy installation in confined spaces and offers versatile fastening solutions for structural steel, equipment frames, and high-torque applications, enhancing operational safety and reducing maintenance downtime.
Specification Summary & Compliance
This fastener adheres to Class 2A thread fit for consistent assembly and meets ASME B18.2.1 and SAE J429 specifications for dimensional accuracy and mechanical properties. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material sustainability in industrial supply chains.
