S-93548A589 5/16"-18 x 1 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, extending service life in demanding environments
- Reliable anti-rotation performance through integrated square neck design that prevents spinning during installation
- High tensile strength of 60,000 PSI (Grade 2) ensures dependable load-bearing capacity for structural applications
- Optimized thread engagement with UNC coarse threading and Class 2A fit for faster assembly and vibration resistance
- Wide rounded head profile provides enhanced bearing surface and prevents pull-through in wood and soft materials
- Full threading along entire shank allows for maximum adjustability and secure fastening at any point
- Industry compliance assurance meeting ASTM A307, SAE J429, and ASME B18.5 standards for consistent quality
Professional Applications & Engineering Value
This Grade 2 carriage bolt delivers exceptional engineering value through its zinc-plated steel construction and specialized design features. The square neck integration solves critical anti-rotation challenges in wood-to-metal and structural connections, eliminating the need for additional locking mechanisms. With Rockwell B70 hardness and 60,000 PSI tensile strength, it withstands substantial shear and tensile loads in construction frameworks, trailer assemblies, and heavy equipment. The fully threaded UNC coarse pattern ensures rapid installation in timber, structural steel, and industrial machinery while maintaining vibration resistance. These carriage bolts are engineered for longevity in outdoor applications, agricultural equipment, and building infrastructure where corrosion protection and reliable performance are paramount.
Specification Summary & Compliance
This carriage bolt features precise Class 2A thread fit with 5/16"-18 UNC coarse threading and right-hand direction. Manufacturing complies with ASTM A307 specifications for low carbon steel bolts, SAE J429 Grade 2 mechanical properties, and ASME B18.5 dimensional standards. The product is RoHS 3 (2015/863/EU) Compliant, ensuring environmental regulation adherence for global industrial applications.
