S-92620A121 3/8"-32 x 1" 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 and Grade 8 classification for critical heavy-duty applications
- Superior corrosion resistance provided by zinc yellow-chromate plating, extending service life in harsh industrial environments
- Precision thread engagement with Class 2A fit and UNEF extra fine pitch for secure fastening in thin materials and fine adjustments
- Enhanced durability through Rockwell C33 hardness, maintaining structural integrity under high stress and vibration
- Full-threaded design ensures maximum grip length and uniform stress distribution across the entire fastener
- Easy installation and removal with standard external hex drive and 9/16" head width for common tool compatibility
- Industry compliance assurance meeting ASME B18.2.1 and SAE J429 specifications for reliable performance in regulated applications
Professional Applications & Engineering Value
These Grade 8 hex head screws deliver exceptional engineering value in applications where high tensile strength and vibration resistance are critical. The UNEF extra fine thread pitch provides superior holding power in thin-section materials and precision assemblies, while the zinc yellow-chromate plating offers reliable corrosion protection in demanding environments such as automotive, heavy machinery, and structural frameworks. The fully threaded design ensures consistent clamping force distribution, making these industrial screws ideal for applications requiring precise preload control and maximum joint integrity under dynamic loading conditions.
Specification Summary & Compliance
This 3/8"-32 hex head screw features precision Class 2A thread fit with UNEF extra fine pitch threading and full compliance with ASME B18.2.1 and SAE J429 standards. Manufactured from high-strength steel with Rockwell C33 hardness and 150,000 psi tensile strength, these fasteners maintain dimensional accuracy and mechanical properties required for critical applications. The zinc yellow-chromate plating provides RoHS and REACH compliant corrosion protection, ensuring reliable performance in various industrial environments.
