Abstract: A rotary connector wherein a free rotation between both housings can be locked or unlocked in a simple manner. A holding member is formed integrally with a first housing through a thin-walled portion, while engaging projections are formed integrally with a second housing, and at the rotary connector manufacturing stage, by aligning both housings exactly with each other and thereafter inserting a tapping screw threadedly into a support portion of the holding member, the tapping screw can be brought into abutment with both engaging projections. Further, at the time of mounting the rotary connector into a steering system, a free rotation between both housings is ensured by cutting the holding member at the thin-walled portion.