A dog spike is a type of fastening, primarily used in railway construction, to secure rails to wooden sleepers. It's characterized by its pointed head and square shank, resembling a dog's head when viewed from the side, hence the name.
The dog spike works together with various railway fasteners to ensure the safe operation of trains. In addition to providing customized dog spikes according to customer requirements, GNEE RAIL also supplies various railway elastic clips such as SKL clips, KPO clamps, E-clips, and Fast clips, as well as high-strength bolts and nuts, under-rail pads, gauge rods, and other railway fasteners.
Dog spikes, crucial components in railway fastening systems, have a long and evolving history.
In the early days of railways in the 19th century, when wooden rails were in use, the fastening methods were relatively basic. As the demand for more reliable track fastening grew, the first metal dog spike was patented in 1866 by American inventor William F. Butcher. Initially, dog spikes were mainly made of wrought iron. They were designed to secure rails to wooden sleepers, playing a vital role in maintaining track stability.
As railway technology advanced, the materials used for dog spikes evolved. Cast iron was introduced, offering better durability in some applications. Later, carbon steel became a popular choice due to its excellent strength - cost ratio, capable of withstanding the heavy loads and vibrations from passing trains. In more corrosive environments, stainless steel dog spikes were developed to resist rust and extend the lifespan of the fastening system.
Over time, the design of dog spikes also underwent improvements. The traditional dog spike has a square - sectioned shank and a pointed penetrating head, with a shape that resembles a dog's head, hence the name. This design provided good grip in wooden sleepers. However, with the increasing use of concrete sleepers, new types of fasteners, such as screw spikes, became more prevalent. But dog spikes still remained in use for specific applications, especially in areas where wooden sleepers were still common or in tracks with lower traffic volumes.
GNEE RAIL innovates in materials and production technology to ensure that dog nails can meet the stringent requirements of modern railway operations. Whether used for local railways, old lines, or in certain maintenance scenarios, their unique performance still has advantages. If you need more information about other products, please contact us.