S-97000A530 1/2"-13 x 3" ASME B18.5, SAE J429 Carriage Bolts

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with 150,000 PSI tensile strength for demanding industrial applications
• Superior corrosion resistance provided by zinc yellow-chromate plating that extends service life in harsh environments
• Reliable anti-rotation performance through the square neck design that prevents spinning during installation and use
• Optimized thread engagement with UNC coarse threading and Class 2A fit ensuring secure fastening in various materials
• Enhanced durability from Rockwell C33 hardness that maintains structural integrity under heavy stress conditions
• Full-threaded design offering maximum grip length and versatile installation options across different material thicknesses
• Industry-standard compliance meeting ASME B18.5 and SAE J429 specifications for quality assurance and interchangeability

Professional Applications & Engineering Value

This Grade 8 carriage bolt delivers exceptional engineering value for heavy-duty industrial applications where vibration resistance and structural integrity are paramount. The square neck design provides critical anti-rotation capability, preventing the bolt from turning during torque application and while in service - a common challenge in machinery assembly, structural steel connections, and transportation equipment. The combination of 150,000 PSI tensile strength and Rockwell C33 hardness ensures reliable performance in high-stress environments, while the zinc yellow-chromate plating offers superior protection against corrosion in outdoor or chemically aggressive settings. The UNC coarse threading with Class 2A fit provides excellent engagement in wood, metal, and composite materials, making these fully threaded carriage bolts ideal for construction, agricultural equipment, and industrial machinery applications requiring dependable, long-lasting fastening solutions.

Specification Summary & Compliance

This heavy-duty fastener features precise Class 2A thread fit with 1/2"-13 UNC coarse threading and right-hand thread direction. The carriage bolt maintains dimensional accuracy per ASME B18.5 specifications and meets SAE J429 Grade 8 requirements for mechanical properties. Manufacturing complies with industry standards for 150,000 PSI tensile strength and Rockwell C33 hardness, ensuring consistent performance and reliability in professional applications.