Carriage Bolt: 5/8-11, 4-1/2" Length Under Head, Square Neck MPN:CAI50620450-025

The Carriage Bolt with a 5/8-11 thread size and a length of 4-1/2 under the head features a square neck that provides additional support for applications requiring heavy loads. The square neck helps distribute force across a wider surface area, preventing the bolt from bending or pulling out when tightened. These bolts are ideal for heavy-duty fastening applications such as building construction, bridges, and machine assembly where strong, reliable holding power is required.