S-90185A247 1/2"-13 x 2 3/4" 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 anti-rotation performance thanks to the integrated square neck design that locks securely into materials, preventing spinning during installation and under vibration.
- Excellent corrosion resistance provided by the zinc-plated steel construction, extending the bolt's service life in demanding industrial environments.
- High-strength reliability with a Grade 5 classification and 120,000 psi tensile strength, ensuring dependable performance in heavy-duty applications.
- Optimized thread engagement with a Class 3A UNC coarse thread fit, allowing for faster assembly and superior resistance to loosening.
- Enhanced durability from a Rockwell C25 hardness, providing excellent resistance to wear and deformation under load.
- Wide, rounded head design offers a larger bearing surface for improved load distribution and a finished appearance.
- Full thread availability ensures maximum grip length and versatility for various material thicknesses.
Professional Applications & Engineering Value
This Grade 5 zinc-plated steel carriage bolt is engineered to solve critical fastening challenges in industrial and construction settings. The combination of a square neck and rounded head provides a secure, non-spinning fit that is essential for wood-to-metal connections and structural frameworks, eliminating the need for additional locking washers. The UNC coarse thread and Class 3A fit ensure quick, reliable installation in softwoods and other materials, reducing assembly time while maintaining a strong hold. Its zinc-plated finish offers a protective barrier against rust and corrosion, making it a durable choice for both indoor and outdoor applications where long-term reliability is paramount.
Specification Summary & Compliance
This carriage bolt features a 1/2"-13 UNC coarse thread with a precision Class 3A thread fit for high-strength applications. It is manufactured in compliance with ASME B18.5 and SAE J429 Grade 5 standards, ensuring dimensional accuracy and mechanical performance. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting stringent environmental and safety regulations for industrial use.
