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 - Non-Symmetric Head Outside Diameter (mm): 115 Head Outside Diameter (in): 4.53 Head Thickness (mm): 35.5 Head Thickness (in): 1.4 Pilot Outside Diameter (mm): 61.7 Pilot Outside Diameter (in): 2.43 Inside Diameter (mm): 21.5 Inside Diameter (in): 0.85 Mount Height (mm): 72.5 Mount Height (in): 2.85 Pad Height (mm): 25 Pad Height (in): 0.98 Bonded Sleeve: No Standard Bolt Size: M20