S-90185A138 1/2"-13 x 1 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
- Superior corrosion resistance with black-oxide steel construction, ideal for harsh industrial environments.
- High tensile strength of 120,000 psi and Grade 5 classification ensure reliable performance under heavy loads.
- Square neck design prevents rotation during installation, providing secure and stable fastening.
- Fully threaded UNC coarse spacing allows for quick assembly and strong holding power in various materials.
- Rockwell C25 hardness offers excellent durability and resistance to wear and deformation.
- Wide, rounded carriage head distributes load evenly and provides a finished appearance.
- Compliance with ASME B18.5 and SAE J429 standards guarantees consistent quality and interchangeability.
Professional Applications & Engineering Value
This Grade 5 black-oxide steel carriage bolt is engineered to address common industrial fastening challenges, such as vibration loosening and corrosion in outdoor or high-moisture settings. The square neck securely locks into materials, preventing spin-out during tightening and ensuring stable connections in wood, metal, and construction assemblies. With a fully threaded UNC coarse design, it enables rapid installation and strong grip in soft materials, reducing labor time. The black-oxide finish enhances corrosion resistance, extending service life in applications like structural framing, machinery, and agricultural equipment. Its high tensile strength and hardness make it a dependable choice for heavy-duty fastening where safety and durability are critical.
Specification Summary & Compliance
This carriage bolt features precise Class 2A thread fit and UNC coarse threading (1/2"-13) for consistent performance. It meets ASME B18.5 and SAE J429 specifications, ensuring dimensional accuracy and reliability. Additionally, it is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmental and safety standards in industrial use.
