S-92356A155 1/2"-13 x 2 3/4" ASME B18.5 Carriage Bolts

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments and outdoor applications.
• Exceptional mechanical strength offering 70,000 psi tensile strength and Rockwell B55 hardness for reliable performance under heavy loads.
• Secure anti-rotation locking provided by the integrated square neck, preventing the bolt from turning during installation and use.
• Wide, rounded head design with a 1.094" diameter for enhanced bearing surface and reduced risk of pull-through in wood and soft materials.
• Easy and quick installation thanks to the fully threaded UNC coarse thread and right-hand direction, compatible with standard tools.
• Precise fit and interchangeability ensured by Class 2A thread fit and compliance with ASME B18.5 dimensional standards.
• Environmentally responsible manufacturing with RoHS 3 and REACH compliance, meeting global regulatory requirements.

Professional Applications & Engineering Value

This heavy-duty 1/2"-13 UNC Carriage Bolt is engineered to address common challenges in structural and industrial fastening. The 18-8 Stainless Steel material provides excellent resistance to rust and corrosion, making it suitable for applications exposed to moisture, chemicals, or outdoor weather conditions. The square neck design is a critical feature that locks securely into the mating material, eliminating rotation during torque application and preventing loosening under vibration—common in machinery, construction, and transportation equipment. With a fully threaded coarse UNC thread, it ensures strong holding power in wood, metal, and composite assemblies, while the 2 3/4" length accommodates thick sections. Its compliance with ASME B18.5 guarantees dimensional consistency and reliability, reducing assembly errors and maintenance needs in demanding environments.

Specification Summary & Compliance

This carriage bolt features a 1/2"-13 UNC thread with Class 2A fit for standard tolerance and easy assembly. It is manufactured in accordance with ASME B18.5 specifications, ensuring precise dimensions for head diameter, neck width, and length. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free of hazardous substances and safe for industrial and commercial use worldwide.