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): 94 Head Outside Diameter (in): 3.7 Head Thickness (mm): 21.7 Head Thickness (in): 0.85 Pilot Outside Diameter (mm): 62.6 Pilot Outside Diameter (in): 2.46 Inside Diameter (mm): 20.7 Inside Diameter (in): 0.81 Mount Height (mm): 29.7 Mount Height (in): 1.17 Bonded Sleeve: Yes Standard Bolt Size: M20