Why Normal Screws Aren't Right for Vacuum Environments: A Deep Dive into Key Features

In high-tech fields like semiconductor manufacturing, research labs, or aerospace, an ultra-high vacuum (UHV) environment is critical. However, engineers often face a challenge: choosing the right fasteners.

Traditional screws perform poorly in vacuum systems due to two major flaws: virtual leaks and high outgassing rates.

Virtual Leaks' Worst Enemy: The Venting Design

A common pain point for many users is an excessively long pump-down time. This is likely caused by "virtual leaks."

When a normal screw is tightened, tiny cavities form between the threads and under the screw head, trapping gas. This gas slowly releases in the vacuum environment, creating the illusion of a leak, which can prevent the system from reaching its target pressure.

To solve this, our vacuum screws feature a special venting design. They come with a central vent hole or a lateral longitudinal slot (vented screws) to ensure trapped gas can escape quickly. This is the fundamental solution for issues like a vacuum pump failing to pull down to the desired pressure.

Goodbye to Cold Welding & Seizing: Coating Technology

In a vacuum, the lack of an oxide layer and lubricants makes screw threads highly susceptible to cold welding or seizing. This can damage threads and make fasteners impossible to remove, complicating maintenance.

Our vacuum screws were created to solve problems like "seized vacuum screws" and "cold welding of stainless steel." The screw surfaces can be coated with silver or gold.

These coatings act as a barrier and provide lubrication, significantly reducing the risk of cold welding and ensuring screws can be repeatedly removed. This improves your system's reliability.

Flexible Service: From Standard to Custom

We know that every vacuum project is unique. Our product portfolio includes a wide range of standard solutions, but we can also meet various special requirements.

Whether you need low magnetic permeability titanium screws or custom fasteners with specific dimensions and shapes, our expert team can provide the most suitable solution.

Our goal is to be more than just a supplier; we aim to be a trusted and reliable partner for your vacuum technology projects.