CLAMP/Square, size: 3.155 x 3.155, depth: 4, aluminum, chromic-anodized finish, panel mount. 123-3232H-J123-3232H-J Square and Rectangular Clamp | 3.155 x 3.155in, 4in Depth, Chromic-Anodized FinishMSP avionics clamps eliminate the need for panel removal when repairing or replacing an instrument su..