S-92865A857 3/4"-10 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 tensile strength of 120,000 psi ensures reliable performance in demanding applications, reducing the risk of fastener failure.
- Superior corrosion resistance from zinc plating extends service life and maintains integrity in harsh industrial environments.
- High hardness rating (Rockwell C25) provides excellent wear resistance and durability under heavy loads.
- Coarse UNC threading offers faster installation and superior holding power in various materials.
- Class 2A thread fit ensures consistent, reliable engagement with mating components for secure fastening.
- Fully threaded design maximizes grip length and distributes stress evenly across the entire fastener.
- External hex drive allows for high-torque installation with standard tools, speeding up assembly processes.
Professional Applications & Engineering Value
This Grade 5 steel hex head screw is engineered to address critical challenges in heavy machinery, structural steel connections, and industrial equipment assembly. The combination of 120,000 psi tensile strength and Rockwell C25 hardness ensures it withstands extreme vibrational forces and dynamic loads without compromising integrity. The zinc plated finish provides essential corrosion protection in environments exposed to moisture or chemicals, significantly extending maintenance intervals. With 3/4"-10 UNC coarse threading and full threading, it delivers rapid installation and superior pull-out resistance in steel frameworks, construction projects, and manufacturing applications where high-strength fastening is non-negotiable for safety and performance.
Specification Summary & Compliance
This hex head screw features precise Class 2A thread fit per UNC standards, ensuring dimensional accuracy and reliable mating. Manufactured to meet ASME B18.2.1 and SAE J429 specifications for Grade 5 fasteners, it guarantees consistent performance in industrial applications. The product is RoHS 3 (2015/863/EU) Compliant, adhering to environmental regulations for hazardous substance restrictions.
