There are four types of screw spike corrosion:(1) Spike pitting;(2)Crevice corrosion of screw spikes;(3) Stress corrosion of screw spikes;(4) Corrosion fatigue of railway spikes.

Screw spikes and concrete sleepers are connected by sulfur anchoring. After the sleeper is laid on the line, with the increase of the use time on the road, the long-term exposure in the natural environment will easily cause the corrosion of the thread and the material near the round table, especially after the serious rust near the round table is not enough to resist the torque and tensile stress, break off.

Rail Fishplates, also called rail joint bars, as connections at the track joints, widely used in railway industry with light rails, heavy rails and super heavy rails. Anyang Railway Equipment Co., Ltd produces various railway rail joints, such as compromise rail fish plates, damper fishplates, glue fish plates, etc.