Different types of rail fastening systems are sold from khedmehcom's blog

elastic rail spikes work by securing the track to the sleeper or tie. Generally speaking, the rail fastening system consists of rail anchors, rail tie plates, seats, fasteners, nails, screws, bolts, etc

The rail fasteners should be able to effectively maintain the reliable connection between the rail and the sleeper for a long time, and give full play to the buffering performance under the dynamic action, and delay the accumulation of residual deformation of the track. So it should have enough strength, durability and a certain degree of elasticity, and the structure should also be simple and easy to install and disassemble. In addition, for the prestressed concrete sleeper, the railway fastener should also have sufficient pressure and gauge and level adjustment.

elastic rail spikes https://www.hbrailwayfastening.com/Lock-Spikes-Elastic-Rail-Spikes.html