UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549



                                   FORM 12b-25
                           NOTIFICATION OF LATE FILING


                      Keystone Consolidated Industries, Inc

                             SEC FILE NUMBER: 1-3919
                             CUSIP NUMBER: 493422109



     [ X ] Form 10-K [ ] Form 20-F [ ] Form 11-K [ ] Form 10-Q [ ] Form 10-D
                          [ ] Form N-SAR [ ] Form N-CSR


                      For Period Ended: December 31, 2005


    [ ] Transition Report on Form 10-K [ ] Transition Report on Form 20-F
    [ ] Transition Report on Form 11-K [ ] Transition Report on Form 10-Q
                     [ ] Transition Report on Form N-SAR
                       For the Transition Period Ended:


    Nothing in this form shall be construed to imply that the Commission has
                   verified any information contained herein.



 If the notification relates to a portion of the filing checked above, identify
          the Item(s) to which the notification relates: Not applicable



                         PART I - REGISTRANT INFORMATION


Full Name of Registrant: Keystone Consolidated Industries, Inc.

Former Name if Applicable:  Not Applicable

Address of Principal Executive Office: 5430 LBJ Freeway, Suite 1740
                                       Three Lincoln Centre,
                                       Dallas, Texas  75240-2697



                        PART II - RULES 12b-25(b) AND (c)


If the subject report could not be filed without  unreasonable effort or expense
and the registrant seeks relief pursuant to Rule 12b-25(b), the following should
be completed.

[X]      (a)  The reasons  described in  reasonable  detail in Part III of this
               form  could  not be  eliminated  without  unreasonable  effort or
               expense;

[X]      (b)  The subject annual report,  semi-annual report, transition report
               on Form 10-K,  Form 20-F,  11-K,  Form  N-SAR or Form  N-CSR,  or
               portion  thereof,  will  be  filed  on or  before  the  fifteenth
               calendar day  following the  prescribed  due date; or the subject
               quarterly  report or  transition  report on Form 10-Q or  subject
               distribution  report on Form 10-D,  or portion  thereof,  will be
               filed  on  or  before  the  fifth   calendar  day  following  the
               prescribed due date; and

 [  ]    (c)   The  accountant's  statement  or other  exhibit  required by Rule
               12b-25(c) has been attached, if applicable.

                              PART III - NARRATIVE


State below in reasonable  detail the reasons why Forms 10-K,  20-F, 11-K, 10-Q,
10-D, N-SAR,  N-CSR, or the transition  report or portion thereof,  could not be
filed within the prescribed period:

The Registrant was not able to complete the preparation and review of its Annual
Report on Form 10-K for the year ended  December 31, 2005 ("Annual  Report") and
file such Annual Report within the required  time period,  without  unreasonable
effort or expense, due to unanticipated delays in assembling all information and
completing  all  reviews  required  with  respect  to  such  Annual  Report  and
transmitting  the  Annual  Report  over  the  Commission's   EDGAR  system.  The
Registrant  has  subsequently  transmitted  and filed the Annual Report with the
Commission, and such Annual Report will be accepted on the EDGAR system on April
3, 2006.




                           PART IV - OTHER INFORMATION


(1)  Name  and  telephone  number  of  person  to  contact  in  regard  to  this
notification:

Bert E.  Downing,  Jr.,  Vice  President,  Chief  Financial  Officer,  Corporate
Controller and Treasurer. 972-233-1700.


(2) Have all other  periodic  reports  required under Section 13 or 15(d) of the
Securities  Exchange Act of 1934 or Section 30 of the Investment  Company Act of
1940  during  the  preceding  12  months  or for such  shorter  period  that the
Registrant was required to file such report(s) been filed?  If the answer is no,
identify report(s).

                  [ X ] Yes                             [ ] No




(3) Is it anticipated that any significant  change in results of operations from
the  corresponding  period for the last  fiscal  year will be  reflected  by the
earnings statements to be included in the subject report or portion thereof?

                  [ X ] Yes                             [  ] No


If so, attach an explanation of the  anticipated  change,  both  narratively and
quantitatively, and, if appropriate, state the reasons why a reasonable estimate
of the results cannot be made.

See the Annual Report, filed with the Commission.







Keystone Consolidated Industries, Inc. has caused this notification to be signed
on its behalf by the undersigned thereunto duly authorized.




Date: March 31, 2006                KEYSTONE CONSOLIDATED INDUSTRIES, INC.


                                    By:/s/ Bert E. Downing, Jr.
                                       Bert E. Downing, Jr.
                                       Vice President, Chief Financial Officer,
                                       Corporate Controller and Treasurer