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): 66.8 Overall Length (in): 2.63 Sleeve Length (mm): 54.6 Sleeve Length (in): 2.15 Head Outside Diameter (mm): 69.9 Head Outside Diameter (in): 2.75 Pilot Outside Diameter (mm): 54.9 Pilot Outside Diameter (in): 2.16 Inside Diameter (mm): 20.5 Inside Diameter (in): 0.81 Standard Bolt Size: M20