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): 60.5 Overall Length (in): 2.38 Sleeve Length (mm): 41.4 Sleeve Length (in): 1.63 Head Outside Diameter (mm): 71.4 Head Outside Diameter (in): 2.81 Pilot Outside Diameter (mm): 41.4 Pilot Outside Diameter (in): 1.63 Inside Diameter (mm): 19.9 Inside Diameter (in): 0.79 Standard Bolt Size: 3/4"