Back Home / Fasteners / Bolts / CARRIAGE BOLT UNC ZINC 1/4″-20 X 3/4″ GR A CARRIAGE BOLT UNC ZINC 1/4″-20 X 3/4″ GR A SKU: X14X34CB Categories: Bolts, Fasteners Made from low or medium carbon steel. Round head bolt with a square neck under the head. The square neck is designed to keep the bolt from turning as the nut is tightened. Zinc plated Tensile strength: 60,000 psi minimum. Case Quantity: 100 Log In For Pricing