The screw spike is also known as rail screw. As one kind of track spike, it is a metal screw for fixing rail fasteners. Screw spike is usually made of NO.3 steel. Because its nail rod surface has thread, so it is called screw spike. The pull-out resistance is 0.5 ~ 1.0 times larger than that of common rail spike, but the thrust resistance is 50% less. Due to disassembly and assembly inconvenience, it is difficult to adjust the rail gauge, which is generally used on the railway turnout.
As for the cost, the screw spike require higher cost than the rail spike but has the advantage of greater fixing power; approximately twice that of a rail spike, and can be used in combination with spring washers.
Specifications of screw spike as following:
|Type||Dimension (mm)||Weight (Kg)|
We also supply the rail sleeper screw spikes for the USA with the standard ASTMA66-87, cold bending 90 degree without cracks. Standard strength 65000PSI or high strength 100000psi is available. Common sizes include 3/4", 7/8", 15/16"
The mechanical properties of 3V sleeper screw are in accordance with NF F 50006,
High tension screw spike is also called as screw spike for wooden sleeper. Size: 15/16×6-1/2.
|Tensile Strength||Yield Strength||Elongation||Reduction of Area||Hardness|
Coach screw is usually used for the mining industry in South Africa.
DHS35 rail sleeper screw spike can be used as a part of SKL14 rail fastening system
Rail sleeper screw spike with two ends is also called as double-head screw spike, usually used together with the Nabla clip system. It is very popular in Africa. For meeting with the bending test, we use special material TD16 to produce the sleeper screw, bending 30 degree and straightening it, without crack.
The dive spike has wide applications, including timber construction highway crossing planks and panels, bridge and trestle guard rails, motor car set-off, docks, etc. The dive spike has advantages of low cost of installation and maintenance. Meet with the standard ASTMA66-87, cold bending 90 degree without crack.
|Tensile Strength||Yield Strength||Elongation 2"|