This is the Atlas Copco hollow bolt part number 3376608111, Crowder SKU AC-3376608111. This holds the assembly together under impact. Torque and thread condition matter more here than on static equipment.
It shows up in the parts breakdown for the LCD 500 & LCD 1500 Hydraulic Core Drill and COR 5/15 Hydraulic Core Drill, and on 1 other machine. Check it against the reference number on the diagram first; serial breaks change what fits.
Use the parts diagram library to work through the rest of the assembly, or the Atlas Copco catalog if you are pricing a replacement machine. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.
- Part number: 3376608111
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3376608111
- Listed on breakdowns for: LCD 500 & LCD 1500 Hydraulic Core Drill, COR 5/15 Hydraulic Core Drill, MHC5 Hydraulic Core Drill

