S-93548A810 5/8"-11 x 4" 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
- Secure anti-rotation performance thanks to the integrated square neck that prevents spinning during installation
- High tensile strength rating of 60,000 PSI (Grade 2) ensures reliable performance under substantial loads
- Excellent hardness characteristics with Rockwell B70 rating for enhanced durability and wear resistance
- Wide rounded head design provides superior bearing surface and prevents pull-through in wood and soft materials
- Coarse UNC threading enables faster installation and better performance in softer materials
- Precision Class 2A thread fit ensures smooth assembly and consistent torque performance
Professional Applications & Engineering Value
These zinc-plated steel carriage bolts deliver exceptional engineering value for industrial applications where vibration resistance and corrosion protection are critical. The combination of Grade 2 strength classification and fully threaded 5/8"-11 UNC coarse threading makes them ideal for heavy-duty wood-to-wood and wood-to-metal connections in construction, agricultural equipment, and transportation applications. The integrated square neck beneath the rounded head provides positive anti-rotation security, eliminating the need for additional locking mechanisms and reducing installation time. This design effectively prevents loosening under dynamic loads and vibration, addressing common failure points in structural assemblies while maintaining ASTM A307 compliance for reliable performance standards.
Specification Summary & Compliance
This 4" carriage bolt features precision Class 2A thread fit with 5/8"-11 UNC coarse threading and right-hand thread direction. Manufactured to meet ASTM A307, SAE J429, and ASME B18.5 specifications, ensuring dimensional accuracy and performance reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, making it suitable for regulated industrial applications worldwide.
