S-97000A527 1/2"-13 x 1 1/2" ASME B18.5, SAE J429 Carriage Bolts

Key Features & Benefits at a Glance

• Maximum load-bearing capability with Grade 8 classification and 150,000 psi tensile strength for demanding industrial applications
• Superior corrosion resistance provided by zinc yellow-chromate plating, extending service life in harsh environments
• Anti-rotation square neck design prevents spinning during installation, ensuring secure fastening and reducing assembly time
• Optimized thread engagement with UNC coarse threading and Class 2A fit for reliable performance in various materials
• Enhanced durability from Rockwell C33 hardness, maintaining structural integrity under heavy vibration and stress
• Wide-rounded head profile distributes clamping force evenly while providing an attractive finished appearance
• Industry compliance assurance meeting ASME B18.5 and SAE J429 specifications for consistent quality and performance

Professional Applications & Engineering Value

This Grade 8 carriage bolt delivers exceptional engineering value through its high-strength steel construction and zinc yellow-chromate plating, specifically engineered to address common industrial fastening challenges. The square neck design eliminates rotation during torque application, preventing damage to connected materials while ensuring proper alignment. The UNC coarse threading provides superior holding power in wood, metal, and composite materials, making it ideal for structural applications, heavy equipment assembly, and transportation infrastructure. With 150,000 psi tensile strength and Rockwell C33 hardness, this carriage bolt maintains integrity under extreme vibration and dynamic loading conditions, offering reliable performance in construction, agricultural machinery, and industrial manufacturing applications where failure is not an option.

Specification Summary & Compliance

This heavy-duty fastener features precise 1/2"-13 UNC coarse threading with Class 2A thread fit for consistent engagement and reliable performance. The carriage bolt maintains strict dimensional compliance with ASME B18.5 standards and meets SAE J429 specifications for Grade 8 mechanical properties. Manufacturing follows industry-recognized quality control processes, ensuring consistent 1-1/2" length, 0.52" square neck dimensions, and proper zinc yellow-chromate plating thickness for corrosion protection. The product conforms to relevant industry regulations for high-strength fasteners used in critical applications.