S-91247A693 7/16"-14 x 6" 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 heavy-duty structural connections
- Superior corrosion resistance through zinc plating, extending service life in demanding environments
- Optimized torque transmission via external hex drive design, preventing tool slippage during high-tension applications
- Reliable thread engagement with Class 2A thread fit and UNC coarse threading, reducing cross-threading risks
- Controlled unthreaded shank section (1 1/8" min thread length) provides enhanced shear resistance in joint assemblies
- Industry-standard compliance including ASME B18.2.1 and SAE J429 specifications for guaranteed interchangeability
- Consistent mechanical properties with Rockwell C25 hardness, ensuring predictable performance under stress
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, this Grade 5 hex head screw addresses critical challenges in structural assembly and machinery maintenance. The zinc plated steel construction provides essential corrosion protection for equipment exposed to environmental elements, while the coarse UNC threading ensures rapid installation and superior vibration resistance in wood-to-metal and structural steel connections. The partially threaded design concentrates tensile strength at the engagement zone, preventing joint failure in dynamic load conditions. With its external hex drive and standardized dimensions, this fastener enables efficient installation using common torque tools, reducing assembly time in construction, manufacturing, and infrastructure projects where 120,000 psi tensile strength is required for safety-critical connections.
Specification Summary & Compliance
This 7/16"-14 UNC hex head screw maintains Class 2A thread fit tolerance per ASME standards, ensuring consistent engagement across compatible components. Manufacturing complies with ASME B18.2.1 and SAE J429 Grade 5 specifications for dimensional accuracy and mechanical properties. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance requirements, containing no restricted substances above threshold limits.
