S.C. Code Ann. § 29-5-360: Rights of creditors among themselves.

When there are several attaching creditors, they shall, as between themselves, be entitled to be paid according to the order of their attachments. But when several creditors who are entitled to the lien provided for in this chapter have equal rights as between themselves and the fund is insufficient to pay the whole, they shall share it equally in proportion to their respective debts.