S-92865A560 1/4"-20 x 4 1/2" 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 strength for demanding applications with Grade 5 steel construction providing 120,000 psi tensile strength and Rockwell C25 hardness
- Superior corrosion resistance from the zinc plated finish, extending service life in harsh industrial environments
- Optimal thread engagement and holding power with fully threaded 1/4"-20 UNC coarse thread design
- Reliable and precise fit ensured by Class 2A thread fit for consistent assembly performance
- Easy installation and high torque capability with the external hex drive and hex head design
- Versatile right-hand threading compatible with standard industrial equipment and components
- Compliance with major industry standards including ASME B18.2.1 and SAE J429 for guaranteed quality
Professional Applications & Engineering Value
This Grade 5 steel hex head screw delivers critical performance in heavy-duty applications where failure is not an option. The combination of 120,000 psi tensile strength and Rockwell C25 hardness provides exceptional resistance to shear and tensile forces in construction, machinery assembly, and structural frameworks. The fully threaded 1/4"-20 UNC coarse thread ensures maximum grip length and vibration resistance, while the zinc plated finish protects against corrosion in demanding environments. Engineered with an external hex drive for secure tool engagement, these screws maintain integrity under high torque conditions, making them ideal for critical connections in industrial equipment, automotive systems, and infrastructure projects where reliability and compliance with ASME B18.2.1 standards are paramount.
Specification Summary & Compliance
This fastener features precision Class 2A thread fit with 1/4"-20 UNC coarse threads and right-hand direction. Manufactured to meet ASME B18.2.1 and SAE J429 Grade 5 specifications, it ensures dimensional accuracy and mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its suitability for global industrial applications.
