Keep your flagpoles safe, stable and easy to service with our hinged base plate and ground socket parts. The hinged base plate allows quick, ground-level lowering for maintenance, while the ground socket (ground sleeve) provides a permanent, plumb foundation set in concrete. Compatible with our fibreglass and aluminium poles, these heavy-duty fittings are the smart choice for professional installations. Keywords: flagpole hinged base plate, flagpole ground socket, flagpole ground sleeve.