S-92620A877 3/4"-16 x 4" 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 applications, reducing the risk of fastener failure.
- Superior corrosion resistance from zinc yellow-chromate plating extends service life in harsh or outdoor environments.
- High hardness rating (Rockwell C33) provides excellent wear resistance and durability under repetitive loads.
- Fully threaded design offers consistent clamping force and versatility across various material thicknesses.
- Precise Class 2A thread fit ensures smooth installation and secure fastening with standard UNF fine threads.
- External hex drive allows for high-torque application with common tools, speeding up assembly and maintenance.
- Compliance with ASME B18.2.1 and SAE J429 guarantees dimensional accuracy and material quality for industrial use.
Professional Applications & Engineering Value
Engineered for demanding industrial settings, this Grade 8 hex head screw combines high-strength steel and a zinc yellow-chromate finish to withstand extreme mechanical stress and resist corrosion in environments like construction, heavy machinery, and automotive assemblies. The UNF fine thread and Class 2A fit provide superior vibration resistance and precise engagement, reducing loosening in dynamic applications. With a fully threaded 4-inch length and external hex drive, it ensures easy installation and reliable performance in structural connections, offering a robust solution for B2B procurement where durability and compliance with standards like ASME B18.2.1 are critical.
Specification Summary & Compliance
This fastener adheres to Class 2A thread fit tolerances for consistent accuracy and meets ASME B18.2.1 and SAE J429 specifications, ensuring dimensional integrity and material quality. The UNF fine thread (3/4"-16) and right-hand threading provide reliable fastening, while the zinc yellow-chromate plating supports RoHS and REACH compliance for environmental safety in industrial use.
