A device for removably securing a flag to a flag pole which has a top portion provided with a thread, which device comprises: • a first connecting member provided with a thread configured to be secured to said top portion of the flag pole by engagement with said thread thereof, wherein the device further comprises: • a second connecting member configured to be removably secured to said first connecting member and when secured to the latter act as a stop for a portion of a flag that has been brought over the flag pole and the first connecting member, and • locking means configured to removably secure the first and second connecting members with respect to each other, which locking means comprises a first locking member arranged on one of the first and second connecting members, and a second locking member arranged on the other connecting member, that said first locking member is movable between a locking position in which it is configured to be in locking engagement with the second locking member and a releasing position in which it allows said second connecting member to be removed from the first connecting member, and that said locking means further comprises biasing means configured to apply a biasing force on said first locking member towards said locking position and to keep it in this position once obtained, wherein the first locking member is transferable to said releasing position for allowing removal of the second connecting member from the first connecting member by overcoming said biasing force, wherein the connecting member with the first locking member has an elongated recess extending at least substantially in the longitudinal direction of the flag pole, the second locking member is a projection extending from a portion of the other connecting member, and said projection of said other connecting member is configured to be inserted in said elongated recess and secured in said recess by engagement with the first locking member when the second connecting member is secured to the first connecting member, characterized in that the first locking member has an elongated body provided with a through-hole extending perpendicularly or at least substantially perpendicularly to the extension of said body, that said first locking member is arranged in said connecting member with the first locking member to have said through-hole aligned with an opening to said elongated recess when the first locking member is moved against the biasing force of the biasing means to the releasing position, and to have the through-hole located offset with respect to said opening of the elongated recess when the first locking member is moved to the locking position by action of the biasing means, that said projection has a top portion defined by a narrower neck portion which top portion has a tapered top end, that said tapered end is configured to be inserted in the through-hole of the first locking member when said projection is introduced in said elongated recess and to move the first locking member towards the releasing position as the projection is brought further into the elongated recess, and that the first locking member is configured to be snapped to the locking position by action of the biasing means when the entire top portion of the projection is brought through the through-hole of the first locking member and to act as a stop for the top portion of the projection so that said top portion is secured in the elongated recess when the first locking member is in the locking position. • a first connecting member provided with a thread configured to be secured to said top portion of the flag pole by engagement with said thread thereof, • a second connecting member configured to be removably secured to said first connecting member and when secured to the latter act as a stop for a portion of a flag that has been brought over the flag pole and the first connecting member, and • locking means configured to removably secure the first and second connecting members with respect to each other, which locking means comprises a first locking member arranged on one of the first and second connecting members, and a second locking member arranged on the other connecting member, that said first locking member is movable between a locking position in which it is configured to be in locking engagement with the second locking member and a releasing position in which it allows said second connecting member to be removed from the first connecting member, and that said locking means further comprises biasing means configured to apply a biasing force on said first locking member towards said locking position and to keep it in this position once obtained, wherein the first locking member is transferable to said releasing position for allowing removal of the second connecting member from the first connecting member by overcoming said biasing force,