UC RediVac® vented washers screws nuts
UC RediVac® vented screws

Fastener Venting

UC Components, Inc. has been the world leader in high vacuum hardware since 1974. We are pioneers and innovators in vented screw manufacturing, providing effective solutions for HV, UHV, EUV, and other clean-critical applications.


RediVac® center vented screws

Center vented screws are the original innovative product in the UC Components, Inc. RediVac® fastener line. Center vented screws are the fasteners of choice for high production processes in vacuum. Our center vented screws are available in a range of inch and metric sizes, multiple head and shaft configurations, and with an array of specialty finishes to help prevent screw galling and aid in corrosion resistance.


RediVac® slot vented screws

UC Components, Inc. RediVac® slot vented screws provide fast, efficient pump-down of HV, UHV, or EUV systems. Their screw vent design allows for more thorough evacuation of virtual leaks along the threaded portions of the fasteners, as well as at the shoulders of the screws. Our slot vented screws are available in numerous inch and metric sizes, and a variety of finishes are available to help prevent screw galling and aid in corrosion resistance.


RediVac® Vented Flat Washers

UC Components, Inc. vented flat washers are proven to be key components in the elimination of virtual leaks from HV, UHV, and EUV systems. When a screw is tightened over a flat washer, or directly into a tapped hole without a washer, volumes of gas can be trapped in the tapped hole and beneath the fastener head along the screw shaft. Over time, vibration or other factors can cause the screw to loosen, thereby releasing the trapped gas and creating a virtual leak.

Our vented flat washers are available in a wide range of inch and metric sizes. Inch-measure vented flat washers are manufactured from 300 series stainless steel and meet NAS 620 and AN960 standards. Our metric-measure vented flat washers are made from A2 stainless steel and are manufactured to meet DIN and ISO requirements.

Why Choose A Vented Screw?

A UC Components, Inc. vented screw provides a path for trapped air and surface contaminants, such as water, to be pumped away from blind-tapped holes. This enables faster, more efficient pump-down of HV, UHV, and EUV systems and eliminates virtual leaks and potential contaminants found in these voids. Installing RediVac® vented screws promotes greater system throughput and improved yield.


Installing a vented screw is a simple process requiring no special tools or tricks—it installs just like a standard, non-vented screw and is most effective when used in conjunction with a vented flat washer.

All of our RediVac® components are designed to help eliminate virtual leaks, improve pump-down times, and enhance the performance of your High Vacuum and Ultra High Vacuum systems. Our RediVac® fastener lines are manufactured from a variety of vacuum-compatible materials and are available in a wide range of inch and metric sizes to meet your needs.

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