S-93548A624 3/8"-16 x 1" 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
- Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding environments
- Exceptional anti-rotation performance thanks to the integrated square neck that prevents spinning during installation
- High tensile strength rating of 60,000 PSI ensures reliable performance in heavy-duty applications
- Optimized thread engagement with Class 2A thread fit and coarse UNC threading for faster assembly and secure fastening
- Wide rounded head design provides superior load distribution and prevents pull-through in wood and soft materials
- Full threading capability allows for maximum adjustability and versatile installation options
- Industry-standard compliance ensures consistent quality and interchangeability across applications
Professional Applications & Engineering Value
These Grade 2 zinc-plated steel carriage bolts deliver exceptional engineering value for industrial and construction applications where vibration resistance and corrosion protection are critical. The square neck carriage bolt design effectively solves the common problem of fastener rotation during tightening, making them ideal for wood-to-metal connections, structural framing, and heavy equipment assembly. The coarse UNC threading ensures quick installation in various materials while maintaining Class 2A thread fit precision. With 60,000 PSI tensile strength and Rockwell B70 hardness, these fully threaded carriage bolts provide reliable performance in demanding environments from agricultural machinery to construction frameworks, offering long-term durability against environmental stressors.
Specification Summary & Compliance
This 3/8"-16 carriage bolt features precise Class 2A thread fit with coarse UNC threading and right-hand thread direction. Manufactured to meet ASTM A307, SAE J429 Grade 2, and ASME B18.5 specifications, ensuring dimensional accuracy and performance reliability. The fastener is RoHS 3 (2015/863/EU) compliant for environmental safety and regulatory adherence in global markets.
