S-91247A854 3/4"-10 x 3 3/4" 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 for reliable performance in demanding applications
- Superior corrosion resistance through zinc plating, extending service life in harsh industrial environments
- Optimized thread engagement with Class 2A thread fit ensuring consistent assembly and vibration resistance
- Enhanced driving efficiency with external hex drive design allowing high torque application and quick installation
- Reduced cross-threading risk through UNC coarse threading that facilitates faster assembly in tough materials
- Precision manufacturing compliance with ASME B18.2.1 standards guaranteeing dimensional accuracy and interchangeability
- Environmental regulation adherence with RoHS 3 and REACH compliance for global market acceptance
Professional Applications & Engineering Value
This Grade 5 steel hex head screw delivers critical engineering solutions for heavy machinery, structural assemblies, and industrial equipment where high tensile strength and vibration resistance are paramount. The 3/4"-10 UNC coarse thread configuration provides superior holding power in steel frameworks and construction applications, while the partial threading design concentrates strength where needed most. The zinc plated finish offers essential corrosion protection in manufacturing facilities, outdoor installations, and marine-adjacent environments. Engineered to ASME B18.2.1 specifications, these industrial hex head screws ensure dimensional consistency across replacement and maintenance cycles, reducing downtime in critical operations.
Specification Summary & Compliance
This fastener maintains Class 2A thread fit tolerances per UNC standards with precise 3/4"-10 coarse threading and 3 3/4" overall length. Manufacturing complies with ASME B18.2.1 and SAE J429 Grade 5 specifications, ensuring mechanical properties including Rockwell C25 hardness and 120,000 psi tensile strength. The product is certified RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant for environmental safety standards.
