S.C. Code § 15-19-360
At the expiration of six months from the docketing of the judgment or forthwith upon the docketing of the judgment in cases in which an automobile has been attached under Section 29-15-20, the court may, upon the petition of the plaintiff accompanied by an affidavit setting forth fully all the proceedings which have been had by the sheriff or constable since the service of the attachment, the property attached and the disposition thereof and also the affidavit of the sheriff or constable that he has used diligence and endeavored to collect the evidences of debt in his hands so attached and that there remains uncollected of the same any part or portion thereof, order the sheriff or constable to sell the property attached upon such terms and in such manner as shall be deemed proper. Notice of such application shall be given to the defendant or his attorney, if the defendant shall have appeared in the action. In case the summons has not been personally served on the defendant the court shall make such rule or order as to the service of notice and the time of service as shall be deemed just.
S.C. Code § 15-19-360