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): 47.8 Head Outside Diameter (in): 1.88 Head Thickness (mm): 19.8 Head Thickness (in): 0.78 Pilot Outside Diameter (mm): 31.1 Pilot Outside Diameter (in): 1.22 Inside Diameter (mm): 13.2 Inside Diameter (in): 0.52 Mount Height (mm): 49.3 Mount Height (in): 1.94 Pad Height (mm): 19.8 Pad Height (in): 0.78 Bonded Sleeve: Yes Standard Bolt Size: M12