S.C. Code Ann. § 33-37-465

A member may make short-term loans to the corporation independently of the loan calls made pursuant to Section 33-37-460. These short-term loans are not subject to the limitations and restrictions described in Section 33-37-460. When the purpose of the short-term loan is to provide funds to the corporation for disbursement of a loan, the corporation may grant to the member funding the short-term loan a security interest in or collateral assignment of the loan on the condition that the security interest or collateral assignment is terminated upon payment of the short-term loan.