S-91247A689 7/16"-14 x 5" 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 for reliable performance in demanding applications
- Superior corrosion resistance through zinc plating, extending service life in harsh industrial environments
- Precise thread engagement with Class 2A UNC coarse threads ensuring secure fastening and vibration resistance
- Optimized torque transmission through external hex drive design for efficient installation and removal
- Enhanced durability with Rockwell C25 hardness providing excellent wear resistance and thread integrity
- Versatile partial threading allowing for both clamping and alignment functions in assembly operations
- Full regulatory compliance meeting ASME, SAE, RoHS 3, and REACH standards for global industrial use
Professional Applications & Engineering Value
This Grade 5 steel hex head screw delivers critical engineering solutions for industrial equipment, machinery assembly, and structural applications where high tensile strength and reliable fastening are paramount. The 7/16"-14 UNC coarse thread configuration provides superior resistance to vibration loosening while enabling rapid installation in production environments. The zinc plated finish creates a protective barrier against corrosion, significantly extending service life in challenging conditions. With partial threading and external hex drive, this fastener offers precise clamping force control and easy access in confined spaces. Engineered to meet ASME B18.2.1 and SAE J429 specifications, this hex head screw ensures dimensional accuracy and performance consistency across industrial applications including heavy machinery, construction equipment, and manufacturing systems.
Specification Summary & Compliance
This 5" length hex head screw features precise Class 2A thread fit with 7/16"-14 UNC coarse threads and right-hand thread direction. Manufactured from Grade 5 steel with Rockwell C25 hardness and 120,000 psi tensile strength. The fastener is partially threaded with minimum thread length of 1-1/8" and meets ASME B18.2.1 and SAE J429 specifications. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for industrial use.
