This all metal base clamp half can be used back to back with a pair to clamp around any tubing 1/2"-1" diameter, and most other shaped channels. Use with a U-bolt to clamp around tubing or channels for installs with tight clearances or to a flat surface. Bolt to a flat surface or to the diamond surface plate. The center socket is threaded 1/4-20" and the 3 hole pattern matches our VibeX Pro Rosettes.
