Isolation mounts are used to attach and position systems, accommodate displacement, and isolate components from the surrounding structure (vibration, shock, noise). Mount Type: Two-Piece - Symmetric Head Outside Diameter (mm): 50 Head Outside Diameter (in): 1.97 Head Thickness (mm): 20 Head Thickness (in): 0.79 Pilot Outside Diameter (mm): 26 Pilot Outside Diameter (in): 1.02 Inside Diameter (mm): 11.1 Inside Diameter (in): 0.44 Mount Height (mm): 30 Mount Height (in): 1.18 Bonded Sleeve: No Standard Bolt Size: 3/8"