S-98060A540 5/16"-18 x 1 1/4" 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 tensile strength of 120,000 psi for reliable performance in demanding industrial applications.
- Superior corrosion resistance with zinc-plated steel coating, extending service life in harsh environments.
- Enhanced durability from Rockwell C25 hardness, reducing wear and deformation under heavy loads.
- Secure anti-rotation design with a knurled neck that prevents loosening in wood and soft materials.
- Easy installation and removal with UNC coarse threading and Class 2A fit for quick assembly.
- Versatile partial threading allowing for precise clamping force control in various joint types.
- Compliance with industry standards including SAE J429, ensuring consistent quality and reliability.
Professional Applications & Engineering Value
This Grade 5 carriage bolt is engineered to address common challenges in industrial fastening, such as vibration-induced loosening and corrosion. The zinc-plated steel construction provides a robust barrier against rust, making it ideal for outdoor equipment, agricultural machinery, and structural assemblies exposed to moisture. Its knurled neck design bites into materials, preventing rotation during torque application, which is critical for wood-to-metal connections in construction and transportation sectors. With a coarse UNC thread and partial threading, it ensures rapid installation and reliable grip in soft substrates, reducing assembly time and maintenance costs. The 120,000 psi tensile strength and Rockwell C25 hardness offer long-term durability, supporting heavy-duty applications where failure is not an option.
Specification Summary & Compliance
This carriage bolt features precise Class 2A thread fit and UNC coarse threading with a size of 5/16"-18, ensuring dimensional accuracy per industry standards. It complies with SAE J429 specifications for mechanical properties and is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental safety and material integrity for global industrial use.
