S-93548A622 3/8"-16 x 3/4" 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, ensuring long-lasting performance in demanding environments
- Exceptional tensile strength of 60,000 psi (Grade 2) provides reliable holding power for heavy-duty applications
- Secure anti-rotation design with integrated square neck that prevents spinning during installation and use
- Wide rounded head profile distributes clamping force evenly and reduces surface damage
- Coarse UNC threading enables faster installation and better performance in softer materials
- Precision Class 2A thread fit ensures consistent engagement and reliable fastening performance
- Full compliance with industry standards including ASTM A307, SAE J429, and ASME B18.5 for guaranteed quality
Professional Applications & Engineering Value
This zinc-plated steel carriage bolt delivers exceptional engineering value through its robust material composition and precision manufacturing. The Grade 2 strength classification with 60,000 psi tensile strength and Rockwell B70 hardness ensures reliable performance in structural applications where vibration resistance and load-bearing capacity are critical. The integrated square neck beneath the rounded head provides superior anti-rotation properties, making it ideal for wood-to-metal connections, construction frameworks, and machinery assembly where traditional bolts might loosen over time. The 3/8"-16 UNC coarse threading offers excellent engagement in various materials while the zinc plating provides essential corrosion protection for both indoor and outdoor industrial environments. These carriage bolts are engineered to solve common fastening challenges in manufacturing, construction, and equipment maintenance applications.
Specification Summary & Compliance
This heavy-duty carriage bolt features precision Class 2A thread fit with 3/8"-16 UNC coarse threading and right-hand thread 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 and REACH (EC 1907/2006) Compliant, meeting current environmental regulations for industrial fasteners.
