S-93604A611 1/4"-20 x 3/4" 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 resistance through hot-dipped galvanized steel construction, ideal for outdoor and harsh industrial environments
- Exceptional tensile strength rated at 60,000 psi (Grade 2) for reliable performance in heavy-duty applications
- Secure anti-rotation design with square neck that prevents spinning during installation and maintains structural integrity
- Easy installation and removal with UNC coarse threading and Class 2A fit for quick assembly in various materials
- Enhanced durability with Rockwell B70 hardness, resisting deformation under high stress conditions
- Wide rounded head profile provides superior load distribution and prevents pull-through in wood and metal assemblies
- Full compliance with ASTM A307, ASTM A153, and ASME B18.5 standards ensuring consistent quality and performance
Professional Applications & Engineering Value
This hot-dipped galvanized steel carriage bolt delivers exceptional engineering value for industrial applications where corrosion resistance and structural integrity are paramount. The Grade 2 strength classification combined with 60,000 psi tensile strength makes it ideal for construction, agricultural equipment, and structural framing applications. The square neck design provides positive locking action that prevents rotation during torque application, solving common installation challenges in wood-to-metal and structural steel connections. The UNC coarse threading with Class 2A fit ensures reliable engagement in various materials while the hot-dipped galvanized coating offers superior protection against rust and environmental degradation, extending service life in demanding conditions.
Specification Summary & Compliance
This 1/4"-20 carriage bolt features precise Class 2A thread fit with UNC coarse spacing and right-hand threading direction. Manufacturing compliance includes ASTM A307 for bolt strength requirements, ASTM A153 for zinc coating specifications, and ASME B18.5 for dimensional standards. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across industrial and construction applications worldwide.
