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): 105 Head Outside Diameter (in): 4.13 Head Thickness (mm): 20 Head Thickness (in): 0.79 Pilot Outside Diameter (mm): 76 Pilot Outside Diameter (in): 2.99 Inside Diameter (mm): 28.5 Inside Diameter (in): 1.12 Mount Height (mm): 36.5 Mount Height (in): 1.44 Bonded Sleeve: Yes Standard Bolt Size: M20