A Rail/Plate Screw is a type of screw specifically designed for fastening railway components, such as rails to ties (sleepers) or securing plates used in rail joints and connections. These screws provide a strong and reliable means of ensuring that railway tracks remain securely aligned and stable under the heavy loads and dynamic forces associated with train operations.
Key Features of Rail/Plate Screws:
- Design:
- Rail/plate screws typically feature a cylindrical shaft with a threaded end that allows for secure fastening to various components.
- The head of the screw may be designed to fit a specific tool for tightening, such as a hex or square drive, ensuring a secure connection.
- Material:
- Made from high-strength steel or alloy materials, rail/plate screws are designed to withstand significant stresses and resist corrosion from environmental factors.
- Some variants may have protective coatings to enhance their durability and resistance to rust.
- Dimensions:
- Length: Rail/plate screws come in various lengths, commonly ranging from 75 mm to 150 mm, depending on the application and thickness of the materials being joined.
- Diameter: The diameter of these screws usually ranges from 12 mm to 20 mm, although this can vary based on specific design requirements.
- Usage:
- Rail/plate screws are primarily used for fastening railway rails to wooden or concrete ties, securing fish plates, or connecting other track components.
- They ensure that the joints remain tight and stable, preventing movement or misalignment under the weight of passing trains.
- Installation:
- Installation involves drilling a hole through the rail and into the tie, inserting the screw, and tightening it using the appropriate tool.
- Proper torque specifications should be followed during installation to ensure the screw is adequately secured without damaging the rail or tie.
