S-92865A183 3/4"-10 x 5 1/4" ASME B18.2.1, SAE J429 Medium-Strength Grade 5 Steel Hex Head Screws
Medium-Strength Grade 5 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 120,000 psi tensile strength, ideal for high-stress structural and machinery applications.
- Superior corrosion resistance provided by zinc plating, extending service life in harsh industrial or outdoor environments.
- Reliable fastening performance due to Grade 5 steel construction and Rockwell C25 hardness, ensuring durability under vibration and load.
- Easy installation and removal with a 1 1/8" external hex head, allowing for high torque application with standard tools.
- Optimized thread engagement through UNC coarse threading and Class 2A fit, reducing cross-threading risk and speeding assembly.
- Versatile partial threading design offering a 1 3/4" minimum thread length for secure clamping in a wide range of material thicknesses.
- Assured quality and safety through compliance with ASME B18.2.1, RoHS 3, and REACH, meeting rigorous industrial and environmental standards.
Professional Applications & Engineering Value
This Grade 5 hex head screw is engineered for demanding industrial fastening where failure is not an option. The high-strength steel core, combined with a zinc-plated finish, resists corrosion and maintains integrity under repetitive stress, making it ideal for construction, heavy machinery, and structural steel connections. The 3/4"-10 UNC coarse thread and Class 2A thread fit ensure quick, precise alignment and reduced installation time, while the partial threading provides a non-threaded shank for enhanced shear strength. These features collectively address common challenges like joint loosening, material fatigue, and environmental degradation, delivering long-term reliability in heavy-duty applications.
Specification Summary & Compliance
This screw features a 3/4"-10 UNC coarse thread with Class 2A thread fit for consistent dimensional accuracy. It is manufactured to meet ASME B18.2.1 specifications, ensuring interchangeability and performance. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming adherence to environmental and safety regulations for hazardous substances.
