N.C. Gen. Stat. § 1-432: Action on sheriff's bond.

If a judgment is recovered against the sheriff, upon his liability as bail, and an execution thereon is returned wholly or partly unsatisfied, the same proceedings may be had on the official bond of the sheriff, to collect the deficiency, as in other cases of delinquency. (C.C.P., s. 172; Code, s. 314; Rev., s. 750; C.S., s. 790.)