Rail spikes, also known as rail fasteners, are widely used metal connectors in rail systems. They have a crucial role in keeping rails in place on sleepers and maintaining proper alignment.
There are different types of rail spikes, including dog spikes, screw spikes, and hook spikes. Dog spikes are common in North America, while screw spikes are more popular in Europe and Asia. Hook spikes are used in specialized applications, such as turnouts and high-speed rail.
Rail spikes are typically made from high-carbon steel and have a shank, head, and point. The shank is the long straight part that goes into the sleeper, the head is the flat part on top of the rail, and the point is the sharp end that helps guide it into the sleeper.
One advantage of rail spikes is their simplicity and reliability. They have been used for over a century and are still widely used today. They are also relatively inexpensive compared to other rail fasteners.
However, there are some drawbacks. Removing and replacing driven-in spikes can be challenging, making maintenance more difficult. Proper installation also requires skill, which can increase installation costs.
Examples of rail spikes include the 5/8-inch square-head screw spike in North America, the Vossloh Fastening Systems screw spike in Europe, and the Nabla spike in France and other European countries. Despite newer rail fastening systems emerging, rail spikes remain crucial in rail systems globally.
