Exhibit 4.1 NUMBER [LOGO OF NN, INC.] SHARES NN NN, INC. COMMON STOCK $.01 PAR VALUE PER SHARE INCORPORATED UNDER THE LAWS OF SEE REVERSE FOR THE STATE OF DELAWARE CERTAIN DEFINITIONS CUSIP 629337 10 6 THIS CERTIFIES THAT IS THE OWNER OF FULLY PAID AND NON-ASSESSABLE SHARES OF COMMON STOCK OF NN, Inc. transferable on the books of the Corporation by the holder hereof in person or by duly authorized attorney upon surrender of this Certificate properly endorsed. This Certificate and the shares represented hereby are issued and shall be held subject to all the provisions of the Certificate of Incorporation and Bylaws of the Corporation and the amendments from time to time made thereto copies of which are on file at the principal office of the Corporation, to all of which the holder of this Certificate by acceptance hereof assents. This Certificate is not valid until countersigned and registered by the Transfer Agent and Registrar. WITNESS, the facsimile seal of the Corporation and the facsimile signatures of its duly authorized officers. Dated COUNTERSIGNED AND REGISTERED BY SUNTRUST BANK TRANSFER AGENT AND REGISTRAR AUTHORIZED SIGNATURE /s/ William C. Kelly, Jr. /s/ Roderick R. Baty Treasurer and Secretary President and Chief Executive Officer [NN, INC. CORPORATE SEAL] NN, INC. The following abbreviations, when used in the inscription on the face of this certificate, shall be construed as though they were written out in full according to applicable laws or regulations. TEN COM - as tenants in common UNIF GIFT MIN ACT - ______ Custodian _________ (Cust) (Minor) TEN ENT - as tenants by the entireties JT TEN - as joint tenants with right of under Uniform Gifts to Minors Act survivorship and not as _________________________________ tenants in common (State) Additional abbreviations may also be used though not in the above list. For value received, __________________hereby sell, assign and transfer unto PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE - ---------------------------------------------- - ---------------------------------------------- - -------------------------------------------------------------------------------- Please print or typewrite name and address including postal zip code of assignee - -------------------------------------------------------------------------------- - -------------------------------------------------------------------------------- Shares - ------------------------------------------------------------------- of the Common Stock represented by the within Certificate, and do hereby irrevocably constitute and appoint ------------------------------------------------------------------------ - -------------------------------------------------------------------------------- Attorney to transfer the said stock on the books of the within-named Corporation with full power of substitution in the premises. Dated, ----------------------------- ------------------------------------ NOTICE: The signature to this assignment must correspond with the name and written upon the face of the Certificate, in every particular, without alteration or enlargement or any change whatever. SIGNATURE(S) GUARANTEED: ------------------------------------------------------- THE SIGNATURE(S) SHOULD BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM), PURSUANT TO S.E.C. RULE 17Ad-15.