道夹板

Track clamp plate is a kind of connecting fastener used for connecting rails. It has four holes and six holes and is also divided into light rail, heavy rail and lifting rail. Also called fishplate or angle bar.

Its function is to connect and clamp two rails to resist joint shear and prevent rail head from staggering.

According to the material, it can be divided into nodular cast iron, Q235 rolling and forging.