Abstract: A one-piece floating spring nut that has overlying upper and lower flattened leaves that extend from separated free ends into connection with a u-shaped spring hinge that resiliently joins the arms at their inboard ends. The upper leaf has a centralized nut locating and retaining collar extruded therefrom that also serves as a guide and through passage for a threaded fastener. The lower leaf has an extruded sleeve portion aligned with the locating and retaining collar, which is internally threaded to threadly receive the threaded fastener. The locating and retaining collar has a generally cylindrical configuration that extends with clearance into an opening in a support member to retain the spring nut in a pre-assembled position on the support member. The collar further cooperates with the edge of the enlarged opening to establish the amount of adjustment that the nut can float relative to the support.