tågskruv

A tågskruv, often translated as a "rail screw" or "coach screw," is a type of heavy-duty fastener used in the construction and maintenance of railway tracks. It is characterized by its coarse, deep threads that are designed to provide a strong grip in wood sleepers or blocks. The screw typically has a hexagonal head that allows for tightening with a wrench or impact wrench.

The primary function of a tågskruv is to secure rail fastenings, such as baseplates or solebars, to the wooden sleepers. This secure connection is crucial for maintaining the stability and alignment of the railway track. The deep threads penetrate effectively into the wood, resisting the significant forces exerted by passing trains, including vertical loads, lateral forces, and vibrations.

Historically, tågskruvar have been a fundamental component of railway construction. While more modern fastening systems exist, particularly for high-speed or heavy-haul lines, tågskruvar remain in use in many railway networks, especially for conventional lines and for certain maintenance or repair applications. Their robustness and simplicity have contributed to their longevity in the rail industry. The installation and removal of tågskruvar are typically carried out using specialized tools designed to handle their size and torque requirements.