S-93604A701 3/8"-16 x 9" ASTM A307, ASTM A153, 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
- Exceptional corrosion resistance with hot-dipped galvanized steel coating for long-lasting performance in harsh environments
- Superior anti-rotation security thanks to the integrated square neck that prevents spinning during installation
- Optimized load distribution from the wide rounded head design, reducing surface pressure and material damage
- Reliable tensile strength rated at 60,000 PSI (Grade 2) with Rockwell B70 hardness for demanding applications
- Easy installation and removal with UNC coarse threading and Class 2A fit for smooth engagement
- Versatile partial threading allowing both secure fastening and adjustable positioning in assemblies
- Full regulatory compliance meeting ASTM A307, ASME B18.5, RoHS 3, and REACH standards for global industrial use
Professional Applications & Engineering Value
This hot-dipped galvanized steel carriage bolt delivers critical engineering solutions where corrosion resistance and structural integrity are paramount. The square neck design actively prevents rotation during torque application, eliminating the need for secondary locking mechanisms in wood-to-metal and structural connections. With its Grade 2 strength rating and 60,000 PSI tensile strength, it reliably supports heavy loads in construction frameworks, trailer assemblies, and industrial equipment. The partial threading configuration provides both maximum grip length where needed and smooth shank sections for shear resistance. The UNC coarse thread pattern ensures rapid installation while maintaining Class 2A tolerance for consistent fit across production runs, making it ideal for high-volume construction and manufacturing applications.
Specification Summary & Compliance
This carriage bolt features precision 3/8"-16 UNC coarse threading with Class 2A fit tolerance and minimum 6" thread length. Manufactured from hot-dipped galvanized steel with Rockwell B70 hardness, it meets ASTM A307 specifications for low-carbon steel bolts and ASME B18.5 dimensional standards. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets.
