S-90185A158 3/4"-10 x 4" 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
- Superior corrosion resistance with black-oxide steel coating, extending service life in harsh industrial environments
- Exceptional tensile strength of 120,000 PSI ensures reliable performance under heavy loads and high-stress applications
- Square neck design prevents rotation during installation, providing secure fastening without slipping
- Fully threaded UNC coarse thread allows for deep engagement and quick assembly in various materials
- Class 2A thread fit guarantees consistent, precise mating with nuts for smooth installation
- Rockwell C25 hardness provides excellent durability and resistance to wear and deformation
- Compliance with major standards including ASME B18.5 and SAE J429 ensures quality and reliability for industrial use
Professional Applications & Engineering Value
This Grade 5 carriage bolt is engineered for demanding industrial applications where corrosion resistance and high tensile strength are critical. The black-oxide steel finish protects against rust and oxidation, making it ideal for outdoor machinery, construction equipment, and agricultural implements exposed to moisture. The square neck securely locks into materials, preventing spin-out during torque application in wood, metal, or composite assemblies. With UNC coarse threading and Class 2A fit, it ensures rapid installation and reliable performance in structural connections, reducing downtime and maintenance costs. Fully threaded for maximum grip length, this heavy-duty carriage bolt delivers consistent clamping force in automotive, manufacturing, and infrastructure projects.
Specification Summary & Compliance
This carriage bolt features precise Class 2A thread fit per UNC standards, ensuring dimensional accuracy and compatibility. Manufactured to ASME B18.5 and SAE J429 Grade 5 specifications, it meets rigorous industrial requirements for strength and reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental safety and material sustainability.
