Isolation mounts are used to attach and position systems, accommodate displacement, and isolate components from the surrounding structure (vibration, shock, noise.) Mount Type: Mushroom Mount Overall Length (mm): 63.5 Overall Length (in): 2.5 Sleeve Length (mm): 49.3 Sleeve Length (in): 1.94 Head Outside Diameter (mm): 83.8 Head Outside Diameter (in): 3.3 Pilot Outside Diameter (mm): 41.2 Pilot Outside Diameter (in): 1.62 Inside Diameter (mm): 20.3 Inside Diameter (in): 0.8 Standard Bolt Size: M20