Quark optical vacuum-compatible aluminum posts are devices that hold optical components at the desired height when attached to them.
These non-magnetic, vacuum-compatible 304L stainless steel posts have a diameter of 12.7 mm. The 3.2 mm hole placed on the side is drilled right in the middle of the post; attaching a spanner wrench to the hole provides extra leverage when tightening assembled components.
Vacuum Compatibility
Vacuum compatible posts are chemically cleaned prior to packaging and prepared for vacuum applications. They can be removed directly from the package with vacuum media up to 10^-6 Torr.