S-93604A731 1/2"-13 x 6 1/2" 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
- Superior corrosion protection with hot-dipped galvanized steel coating for extended service life in harsh environments
- Reliable anti-rotation performance thanks to the integrated square neck design that prevents spinning during installation
- Heavy-duty load capacity with Grade 2 strength rating and 60,000 psi tensile strength for structural applications
- Optimized thread engagement through UNC coarse threading and Class 2A fit for faster assembly and secure fastening
- Enhanced durability with Rockwell B70 hardness that resists deformation under stress
- Versatile partial threading allowing for both clamping and adjustment capabilities in various applications
- Regulatory compliance assurance meeting industry standards including ASTM A307, ASTM A153, and ASME B18.5
Professional Applications & Engineering Value
This hot-dipped galvanized steel carriage bolt delivers exceptional engineering value in structural and heavy-duty applications where corrosion resistance and reliable fastening are critical. The square neck design provides superior anti-rotation performance, eliminating the need for additional locking mechanisms during assembly in wood-to-metal and structural steel connections. The UNC coarse thread configuration ensures rapid installation and secure holding power in timber, construction frameworks, and industrial equipment. With its Grade 2 strength rating and 60,000 psi tensile strength, this partially threaded carriage bolt maintains integrity under substantial loads while the hot-dipped galvanized coating provides long-term protection against environmental degradation in outdoor and high-moisture applications.
Specification Summary & Compliance
This carriage bolt features precise Class 2A thread fit with 1/2"-13 UNC coarse threading and partial threading configuration (minimum 6" thread length). Manufactured to meet ASTM A307 specifications for low carbon steel bolts, ASTM A153 for zinc coating (hot-dip), 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 various industrial applications.
