Small Screw, Big Impact: The Vented Screw Revolution in Vacuum Systems
A vented screw, also known as a vacuum screw or hollow screw, features a through-hole running along its axis.
This special design is crucial in vacuum systems, allowing trapped air between the screw tip and the bottom of a blind tapped hole to escape efficiently.
Using standard screws in vacuum setups often leads to residual air that cannot escape during the evacuation process, making it difficult to achieve the desired vacuum level.
Vented screws solve this by letting air pass directly through their hollow center, significantly enhancing vacuum performance.
They also help prevent virtual leaks—a common issue where gas trapped in micro-gaps between threads slowly escapes over time, negatively impacting vacuum stability.
Vented screws reduce this risk by enabling faster air removal and more reliable sealing.
These screws are widely used in environments requiring high vacuum, such as optical systems, food processing equipment, cleanrooms, vacuum chambers, and semiconductor machinery.
In short, vented screws, with their smart hollow-core design, ensure efficient air evacuation, reduce virtual leaks, and support the stable operation of high-vacuum systems.