Flex line from copper pipe to Mr. Heater.

Hello,
As I am starting to work on my galley, I need to layout my propane line so it can connect the propane tanks to a Mr. Buddy space heater, the refrigerator and the cooktop. I have adequate coppertubing for the majority of the line and also fittings. However I would like to run a flexible line from the main propane copper line to the heater that would have fittings on one end for the copper line and a fitting which can be turned onto the threadson the heater which are meant for small propane tanks. I have a large hose that I used With a larger propane tank and that worked very well, but it is four feet too long for the inside of the cabin. I simply need to know the correct terms to describe those fittings. I believe the pipe fitting is 3/8 npt (correct?) but do not know the proper terminology to describe the fitting with threads for small propane bottles that normally screw into the heater by hand rotation. I would appreciate the correct terminology and the best source for obtaining a 2 foot hose with these connections. This site has been great in helping me with these mechanical challenges.
As I am starting to work on my galley, I need to layout my propane line so it can connect the propane tanks to a Mr. Buddy space heater, the refrigerator and the cooktop. I have adequate coppertubing for the majority of the line and also fittings. However I would like to run a flexible line from the main propane copper line to the heater that would have fittings on one end for the copper line and a fitting which can be turned onto the threadson the heater which are meant for small propane tanks. I have a large hose that I used With a larger propane tank and that worked very well, but it is four feet too long for the inside of the cabin. I simply need to know the correct terms to describe those fittings. I believe the pipe fitting is 3/8 npt (correct?) but do not know the proper terminology to describe the fitting with threads for small propane bottles that normally screw into the heater by hand rotation. I would appreciate the correct terminology and the best source for obtaining a 2 foot hose with these connections. This site has been great in helping me with these mechanical challenges.