What is the difference between Dog Spike and Screw Spike

Railroad spikes are a common type of rail fastener used to connect steel rail and railway sleeper. There are many types of spikes, including screw spikes and dog spike. From the appearance point of view, the more prominent difference between the screwl spike and the ordinary spike is that the surface of the spike has obvious thread. A thread is a shape having a uniform spiral protrusion on a section of the outer or inner surface of the solid.

 

 

Comparison of Dog Spike and Screw Spike

 

 

1.Shape and Classification

 

Just look at the appearance of the two different spikes, we can see apparently that dog spike looks like a large nail with a dog lug head, while screw spike is with many screws on the surface of shank. The shape of dog spike is simple, and the classification of screw spike is various and the shape diversified.

 

2.Fastening Sleeper

 

Dog spike is only used in wooden sleepers, nevertheless, screw spike is used on concrete sleepers. With the trend that concrete sleepers more and more widely used in recent railway construction, screw spike is more popularized and the requiring number is increasing.

 

 

3.Inserting Method

 

In the past times, dog spike is usually driven into the wooden sleeper with a heavy hammer by hand. But now the manual work has been replace by the machine "spike driver". The screw spike is usually fastened to the concrete sleeper through anchoring technology.

 

4.Fastening power

 

Screw spike is more tightened than dog spike. The fastening power of screw spike is more than twice of dog spike. In addition, screw spike is usually used with the plastic sleeve.

 

5.Costing

 

The manufacturing cost of screw is higher that of dog spike, because the manufacturing process of screw spike is more complex than dog spike.

 

GNEE RAIL provides railway spikes of various specifications and can provide customized product services according to customer requirements:

 

Dog Spike

 

Specification	Material	Surface	Standard
5/8*6 ''	A3,Q235, 45#,55#, etc	According to customer needs.	According to customer's drawings or samples.
9/16*5-1/2 ''
3/8''*3-1/2 ''
1/2*3-1/2
Other kinds

 

Screw Spike

 

Type	Ss5, Ss 8, Ss25, Ss36, UIC864-1 Series, etc
Raw material	Q235, 35 steel, 45steel, 40Mn2, 20 Mn Si
Grade	4.6, 4.8, 5.6, 8.8
Surface	plain(oiled), black paint, color paint, zinc, HDG, etc

 

 

Send your special customization requirements to GNEE.