CLAMP/Round, size: 2, depth: 1, aluminum, chem-film (alodine) finish. 64388-C64388-C Round Clamp | 2in, 1in Depth, Chem-Film Alodine FinishMSP avionics clamps eliminate the need for panel removal when repairing or replacing an instrument such as an altimeter or artificial horizon. These patented che..