S-93548A546 1/4"-20 x 1 1/2" ASTM A307, SAE J429, ASME B18.5 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
- Enhanced corrosion resistance with zinc-plated steel coating, extending service life in harsh industrial environments
- Superior anti-rotation performance thanks to the integrated square neck design that prevents loosening under vibration
- Reliable 60,000 PSI tensile strength and Rockwell B70 hardness for heavy-duty applications requiring Grade 2 performance
- Easy installation and compatibility with UNC coarse threading and Class 2A fit for standard tooling and quick assembly
- Wide-rounded head design provides increased bearing surface for secure fastening in wood and metal assemblies
- Full regulatory compliance meets ASTM A307, SAE J429, and ASME B18.5 specifications for quality assurance
- Environmentally responsible manufacturing with RoHS 3 compliance for sustainable procurement
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these zinc-plated steel carriage bolts deliver exceptional performance in construction, machinery, and transportation equipment. The square neck design effectively counters rotational forces in wood-to-metal and structural connections, eliminating the need for additional locking components. With UNC coarse threading and Class 2A thread fit, installation becomes faster while maintaining precise engagement. The zinc plating provides reliable corrosion protection in outdoor and high-moisture environments, while the Grade 2 strength rating ensures dependable performance under static and dynamic loads. These carriage bolts are particularly valuable in applications where vibration resistance and long-term reliability are critical, such as trailer manufacturing, agricultural equipment, and structural framing.
Specification Summary & Compliance
This 1/4"-20 x 1-1/2" carriage bolt features precise Class 2A thread fit with UNC coarse threading and right-hand direction. Manufacturing complies with ASTM A307, SAE J429, and ASME B18.5 standards, ensuring dimensional accuracy and performance reliability. The product is fully RoHS 3 (2015/863/EU) compliant for environmental safety and sustainable procurement practices.
