S-92865A607 5/16"-18 x 5 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 load-bearing capacity with 120,000 PSI tensile strength, ideal for demanding structural and machinery applications.
- Superior corrosion resistance from the zinc plating, extending service life in various industrial environments.
- High-strength Grade 5 classification and Rockwell C25 hardness ensure reliable performance under high stress and vibration.
- Optimized coarse UNC thread design for faster installation and enhanced grip in a wide range of materials.
- Precise Class 2A thread fit guarantees consistent engagement and reduces the risk of cross-threading during assembly.
- Fully threaded shank provides maximum thread contact and uniform clamping force along the entire 5-1/2" length.
- External hex drive and hex head allow for high-torque tightening with standard tools, simplifying maintenance and disassembly.
Professional Applications & Engineering Value
This Grade 5 hex head screw is engineered from zinc plated steel to address critical industrial fastening challenges, such as joint integrity under dynamic loads and exposure to corrosive elements. The 5/16"-18 UNC coarse thread and fully threaded design deliver superior holding power and vibration resistance, making it a reliable choice for heavy machinery, structural steel connections, and automotive assemblies. Its high tensile strength and Rockwell C25 hardness ensure it withstands extreme forces without stripping or shearing, reducing downtime and maintenance costs. By meeting ASME B18.2.1 and SAE J429 standards, it provides consistent quality and compatibility for engineers and procurement specialists seeking durable, high-performance industrial hex screws.
Specification Summary & Compliance
This fastener features a Class 2A thread fit for precise dimensional accuracy and easy assembly, adhering to UNC coarse thread standards. It complies with ASME B18.2.1 and SAE J429 specifications for mechanical properties and design, ensuring reliability in high-stress applications. Additionally, it is RoHS 3 (2015/863/EU) Compliant, supporting environmental and safety regulations in global supply chains.
