S-92620A852 1/2"-20 x 1 1/8" ASME B18.2.1, SAE J429 High-Strength Grade 8 Steel Hex Head Screws
High-Strength Grade 8 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
- Maximum load-bearing capacity with 150,000 PSI tensile strength for demanding industrial applications
- Superior corrosion resistance through zinc yellow-chromate plating that protects against harsh environmental conditions
- Precise thread engagement with Class 2A UNF fine threads ensuring secure, vibration-resistant connections
- Exceptional durability from Grade 8 steel construction with Rockwell C33 hardness for long service life
- Easy installation and removal with standard 3/4" external hex head design for common tool compatibility
- Full-threaded design providing consistent clamping force along the entire 1-1/8" length
- Industry-standard compliance meeting ASME B18.2.1 and SAE J429 specifications for reliable performance
Professional Applications & Engineering Value
These Grade 8 hex head screws deliver exceptional engineering value in heavy machinery, construction equipment, and automotive applications where high tensile strength and corrosion resistance are critical. The zinc yellow-chromate plated finish provides superior protection against rust and environmental degradation, extending service life in demanding conditions. The UNF fine thread configuration with Class 2A fit ensures precise engagement and vibration resistance, preventing loosening in dynamic load applications. The external hex drive design allows for high torque application using standard tools, making installation efficient while maintaining the structural integrity required for industrial fastening solutions that must withstand extreme mechanical stresses.
Specification Summary & Compliance
This 1/2"-20 hex head screw features precise Class 2A thread fit tolerance with UNF fine threading and full threading along the 1-1/8" length. Manufactured from high-strength steel with Rockwell C33 hardness and 150,000 PSI tensile strength, the fastener complies with ASME B18.2.1 and SAE J429 Grade 8 specifications. The zinc yellow-chromate plating provides corrosion protection while meeting industry standards for heavy-duty industrial applications requiring reliable, high-performance fastening solutions in inch system measurements.
