These 1.0” optic mounts are machined into a stainless steel double sided conflat 2.75” flange designed for inline use in Ultra High Vacuum (UHV) systems. The optic may be up to 1.0” OD and up to 0.35” thick. It is held in place with a non-anodized aluminum SM1 retaining ring for easy removal and replacement. The kit includes ¼”-28 socket head screws that accept an IP30 Torx bit, with lengths suitable for mounting to tapped or through-hole flanges. Pair these optic mounts with any of our zero-length UHV compatible viewports to make an UHV optical system.