S-97000A525 3/8"-16 x 2 1/2" ASME B18.5, SAE J429 Carriage Bolts
Carriage Bolts
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Basic Information
Head Parameters
Neck & Shank Parameters
Dimension Parameters
Thread Parameters
Material & Strength Parameters
Finish & Compliance Parameters
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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 structural applications
- Superior corrosion protection through zinc yellow-chromate plating, extending service life in harsh environments
- Anti-rotation security with integrated square neck design that prevents spinning during installation
- Precision threading compatibility featuring UNC coarse threads with Class 2A fit for reliable engagement
- Exceptional durability backed by Rockwell C33 hardness for resistance to wear and deformation
- Optimized head design with wide rounded profile for enhanced bearing surface and reduced surface pressure
- Industry compliance assurance meeting ASME B18.5 and SAE J429 specifications for quality and interoperability
Professional Applications & Engineering Value
These Grade 8 carriage bolts deliver exceptional engineering value for heavy machinery, structural steel connections, and industrial equipment assembly. The zinc yellow-chromate plated finish provides robust corrosion resistance in demanding environments, while the square neck design eliminates rotation during torque application - a critical advantage in vibration-prone applications. The 3/8"-16 UNC coarse threading ensures rapid installation and reliable performance in structural wood, metal framing, and equipment bases. With 150,000 PSI tensile strength and Rockwell C33 hardness, these fasteners maintain integrity under extreme loads, making them ideal for construction, transportation, and manufacturing applications where failure is not an option.
Specification Summary & Compliance
This heavy-duty carriage bolt features precision Class 2A thread fit with 3/8"-16 UNC coarse threads in right-hand direction. Manufactured to ASME B18.5 and SAE J429 specifications, ensuring dimensional accuracy and performance reliability. The inch-system measurements include 2-1/2" length, 0.844" head diameter, and 0.39" square neck width. Compliant with RoHS and REACH environmental standards, providing both mechanical excellence and regulatory compliance for industrial applications.
