A rotator is provisionally fixed to a neutral position with respect to a stator easily, and a steering wheel is appropriately attached, to or detached from, the rotator easily in a state where an urged state for the provisional fixation is uniform. A rotatable connector device 11 includes the stator 21, the rotator 31, and a provisional fixing mechanism 41 for performing provisional fixation at the neutral position. The provisional fixing mechanism 41 has a center hole 42 and is integrally fixed to a bottom part of the rotator 31, and puts engaging parts 47, of an engaging member 44 moved upward by an urging force of a built-in spring member 43, into engagement with engageable parts 22a of the stator 21. The engaging parts 47 and the engageable parts 22a are located at one neutral position at which the rotator 31 is at the neutral position when these parts are engaged with each other, and at an opposite position opposite thereto. In the vicinity of a spring contact face 44a of the engaging member 44 that is contactable with a top end of the spring member 43, regulation means 49 for regulating the position of the top end of the spring member 43 is provided.