S-92356A740 1/2"-13 x 8" ASME B18.5 Carriage Bolts

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and outdoor applications.
• Exceptional mechanical strength offering 70,000 psi tensile strength and Rockwell B55 hardness for reliable performance under high stress.
• Secure anti-rotation locking provided by the integrated square neck, preventing the bolt from spinning during installation and use.
• Optimized load distribution from the wide, rounded carriage head, minimizing surface damage and pull-through.
• Easy and reliable installation with coarse UNC threading and Class 2A fit, ensuring smooth engagement and consistent clamping force.
• Versatile partial threading design allows for effective use in applications requiring a non-threaded shank for shear strength.
• Compliance with major industrial standards including ASME B18.5, RoHS 3, and REACH, guaranteeing quality and environmental safety.

Professional Applications & Engineering Value

This 1/2"-13 UNC Carriage Bolt is engineered to address critical challenges in heavy-duty industrial applications, such as construction, machinery assembly, and transportation equipment. The 18-8 Stainless Steel material provides excellent resistance to rust and corrosion, significantly extending service life in moist or chemically aggressive environments. Its square neck design is a key feature that locks securely into the mounting material, preventing rotation during torque application and vibration, which is a common failure point in dynamic loads. The partially threaded shank ensures that the unthreaded portion bears shear loads effectively, while the threaded section allows for secure nut fastening. With a coarse thread and Class 2A fit, installation is swift and reliable, reducing assembly time and improving overall structural integrity in frameworks, trailers, and agricultural implements.

Specification Summary & Compliance

This carriage bolt adheres to precise dimensional and performance criteria, including a 1/2"-13 UNC coarse thread with Class 2A thread fit for standard tolerance and compatibility. It is manufactured in compliance with the ASME B18.5 standard, ensuring consistent quality and interchangeability. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from hazardous substances and safe for use in various industrial and commercial settings.