S-97000A529 1/2"-13 x 2 1/2" ASME B18.5, SAE J429 Carriage Bolts

Key Features & Benefits at a Glance

• Maximum Load Capacity - Grade 8 classification and 150,000 PSI tensile strength ensure reliable performance in high-stress industrial and construction environments
• Superior Corrosion Protection - Zinc yellow-chromate plating provides enhanced resistance against rust and environmental degradation
• Anti-Rotation Security - Square neck design locks securely into place during installation, preventing spinning and ensuring proper alignment
• Consistent Thread Engagement - Class 2A thread fit with UNC coarse threading offers reliable fastening and easier assembly in various materials
• Optimized Hardness - Rockwell C33 hardness rating provides excellent durability while maintaining necessary toughness for demanding applications
• Full Thread Coverage - Fully threaded design allows for maximum adjustability and secure fastening throughout the entire bolt length
• Industry Standard Compliance - Meets ASME B18.5 and SAE J429 specifications, ensuring quality and interoperability with other standard components

Professional Applications & Engineering Value

This Grade 8 carriage bolt delivers exceptional engineering value through its robust construction and specialized features. The zinc yellow-chromate finish provides superior corrosion resistance, making it ideal for outdoor construction, agricultural equipment, and industrial machinery exposed to harsh environments. The square neck design solves critical installation challenges by preventing rotation during tightening, ensuring secure fastening in wood, metal, and composite materials. With its 1/2"-13 UNC coarse threading and Class 2A thread fit, this fully threaded bolt offers reliable engagement in various substrates while maintaining consistent clamping force. The combination of 150,000 PSI tensile strength and Rockwell C33 hardness ensures these carriage bolts withstand extreme loads and vibration in structural applications, heavy equipment assembly, and infrastructure projects where failure is not an option.

Specification Summary & Compliance

This heavy-duty carriage bolt features precise Class 2A thread fit tolerance with 1/2"-13 UNC coarse threading and right-hand thread direction. The fastener meets ASME B18.5 and SAE J429 specifications, ensuring dimensional accuracy and performance reliability. Manufacturing complies with industry standards for Grade 8 strength classification, delivering consistent 150,000 PSI tensile strength and Rockwell C33 hardness across production batches. The zinc yellow-chromate plating provides RoHS and REACH compliant corrosion protection for environmentally conscious applications.