S-90185A145 1/2"-13 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 anti-rotation performance with a square neck design that securely locks into materials, preventing bolt spin during installation and use.
- Enhanced durability and corrosion resistance from 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 and stress.
- Consistent thread engagement with fully threaded UNC coarse pattern for faster assembly and strong holding power.
- Precision manufacturing with Class 2A thread fit guarantees smooth installation and compatibility with standard nuts.
- Wide, rounded head profile distributes clamping force evenly, reducing surface damage and improving safety.
- Compliance with major industry standards including ASME B18.5, ensuring quality and interchangeability in professional applications.
Professional Applications & Engineering Value
This Grade 5 carriage bolt is engineered to address common industrial challenges such as vibration loosening and material wear. The black-oxide steel provides a protective layer against rust, extending service life in outdoor or high-moisture settings like agricultural machinery, construction frameworks, and transportation equipment. Its fully threaded UNC coarse pattern and square neck work together to resist rotation, making it ideal for wood-to-metal connections and structural assemblies where reliability is critical. By combining high tensile strength with precise ASME B18.5 specifications, this bolt delivers consistent performance in heavy-duty applications, reducing maintenance needs and downtime.
Specification Summary & Compliance
This carriage bolt adheres to Class 2A thread fit tolerances and UNC coarse threading standards for dimensional accuracy. It meets ASME B18.5 manufacturing specifications and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity.
