S-90185A814 5/8"-11 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
- Exceptional load-bearing capacity with Grade 5 rating and 120,000 psi tensile strength for reliable performance in demanding applications.
- Superior corrosion resistance from zinc-plated steel construction, extending service life in harsh industrial or outdoor environments.
- Secure, non-spinning installation ensured by the square neck design, which locks into materials to prevent rotation during tightening.
- Wide, rounded head provides a larger bearing surface to distribute load and reduce material damage.
- Easy and fast assembly with coarse UNC threading and fully threaded shank, allowing for quick engagement and high clamping force.
- Consistent dimensional accuracy with Class 2A thread fit, ensuring compatibility and reliable fastening in pre-drilled holes.
- Compliance with major industry standards including ASME B18.5 and SAE J429, guaranteeing quality and interchangeability.
Professional Applications & Engineering Value
This Grade 5 zinc-plated steel carriage bolt is engineered to solve critical fastening challenges in heavy-duty applications. The square neck design prevents rotation during installation, making it ideal for wood-to-metal connections in construction, agricultural machinery, and structural frameworks where vibration resistance is essential. Its coarse UNC thread and fully threaded shank ensure rapid assembly and strong holding power in soft materials or pre-tapped holes. The zinc plating offers a protective barrier against rust and corrosion, extending the bolt's lifespan in outdoor or high-moisture environments. With a Rockwell C25 hardness and high tensile strength, it withstands dynamic loads and stress, reducing maintenance needs and downtime in industrial operations.
Specification Summary & Compliance
This carriage bolt features a 5/8"-11 UNC coarse thread with Class 2A fit for precise dimensional tolerance. It meets ASME B18.5 and SAE J429 specifications, ensuring consistent manufacturing quality. The product is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free of hazardous substances and safe for various industrial uses.
