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): 80 Head Outside Diameter (in): 3.15 Head Thickness (mm): 32 Head Thickness (in): 1.26 Pilot Outside Diameter (mm): 38.8 Pilot Outside Diameter (in): 1.53 Inside Diameter (mm): 16.2 Inside Diameter (in): 0.64 Mount Height (mm): 41.5 Mount Height (in): 1.63 Bonded Sleeve: Yes Standard Bolt Size: M16