S-92865A884 7/8"-9 x 2 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 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 coarse UNC threading providing faster installation and superior vibration resistance
- Precise mechanical properties backed by Grade 5 certification and Rockwell C25 hardness for consistent quality
- Easy installation and removal with external hex drive design accommodating standard wrench tools
- Reliable thread compatibility with Class 2A fit ensuring smooth assembly and interchangeability
- Full-length threading delivering maximum grip strength across the entire fastener length
Professional Applications & Engineering Value
This Grade 5 hex head screw delivers critical engineering solutions for heavy machinery, structural assemblies, and industrial equipment where high tensile strength and reliable fastening are paramount. The zinc plated steel construction provides essential corrosion protection in manufacturing facilities, construction sites, and outdoor applications. The 7/8"-9 UNC coarse thread design ensures rapid installation while maintaining superior clamping force, significantly reducing assembly time in production environments. With fully threaded configuration and external hex drive, this fastener offers maximum engagement depth and tool accessibility, making it ideal for critical joints in structural steel, heavy equipment maintenance, and industrial machinery where vibration resistance and long-term reliability are essential requirements.
Specification Summary & Compliance
Manufactured to exacting Class 2A thread fit tolerances with UNC coarse thread specifications ensuring proper clearance and interchangeability. Complies with ASME B18.2.1 and SAE J429 Grade 5 standards for dimensional accuracy and mechanical properties. Meets environmental regulations including RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) requirements, confirming suitability for regulated industrial applications worldwide.
