S-92865A878 3/4"-16 x 1 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
- Superior load-bearing capacity with 120,000 psi tensile strength for reliable performance in demanding applications
- Enhanced corrosion resistance through zinc plating, extending service life in industrial environments
- Precision thread engagement with Class 2A fit and UNF fine threads ensuring vibration-resistant connections
- Optimized torque transmission through external hex drive design and substantial 1 1/8" head width
- Consistent mechanical properties with Rockwell C25 hardness maintaining dimensional stability under stress
- Full threading along 1 3/4" length provides maximum grip range and adjustment flexibility
- Grade 5 certification guarantees material quality and performance reliability for critical assemblies
Professional Applications & Engineering Value
These Grade 5 hex head screws deliver exceptional engineering value in heavy-duty industrial applications where joint integrity is paramount. The zinc plated steel construction provides essential corrosion protection for machinery, structural frameworks, and equipment subjected to harsh operating conditions. The 3/4"-16 UNF fine thread configuration offers superior resistance to vibrational loosening compared to coarse threads, while the external hex drive enables high-torque installation with standard tools. The fully threaded design ensures maximum thread engagement throughout the fastened materials, distributing clamp load evenly and preventing joint failure in high-stress environments such as construction equipment, automotive assemblies, and industrial machinery frames.
Specification Summary & Compliance
Manufactured to Class 2A thread fit tolerances with UNF thread form meeting precise dimensional requirements. Complies with ASME B18.2.1 and SAE J429 Grade 5 specifications for material composition and mechanical properties. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance standards, ensuring safe use across regulated industries. The inch system measurement provides compatibility with North American equipment and existing fastener inventories.
