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By certification 
The rail sleeper screw spikes are used to fasten the sole plate and ribbed baseplates to wooden sleepers. If the sleeper in use is concrete sleeper, the rail sleeper screw spike is used together with a plastic dowel, the plastic dowel is prepressed in concrete sleeper. The thread size of the plastic dowel must suit with the thread of the sleeper screw spike.
We supply a wide range of sleeper screw spikes according to international standards.
Some common types of the sleeper screw we’re suppling all the time are as follows;
Ss sleeper screw spike:Ss5, Ss8, Ss23, Ss25, Ss35, Ss36
3v screw spike: V20-135, V23-115, V23-135, V23-155, V23-215, V26-115
Double head screw spike: M23*174
DHS35 screw spike: 24*158, 24*161
We can supply any kind of rail sleeper screw spike according to customer’s drawing and specification.
Shanghai Bosheng Industries is specialized in the supplying of rails, turnouts and various rail fastening materials such as rail fishplate, tie plate, rail clips, screw spikes, rail anchors, rail shoulder, rail pads and so on.
