SIXTH AMENDMENT TO AMENDED AND RESTATED
                      REVOLVING LOAN AND SECURITY AGREEMENT

     THIS SIXTH  AMENDMENT TO AMENDED AND RESTATED  REVOLVING  LOAN AND SECURITY
AGREEMENT (the "Sixth Amendment") is entered into as of January 17, 2001, by and
between  KEYSTONE   CONSOLIDATED   INDUSTRIES,   INC.,  a  Delaware  corporation
("Borrower"),   and  CONGRESS  FINANCIAL  CORPORATION  (CENTRAL),   an  Illinois
corporation ("Lender"). Except for terms which are expressly defined herein, all
capitalized  terms used herein shall have the meaning  subscribed to them in the
Loan Agreement (as defined below).

                                    RECITALS

     WHEREAS,  Borrower  and Lender  are  parties to that  certain  Amended  and
Restated Revolving Loan and Security Agreement dated as of December 29, 1995 (as
amended,  supplemented  or  otherwise  modified  from  time to time,  the  "Loan
Agreement").

     WHEREAS, Borrower desires to amend the terms of the Loan Agreement.

     WHEREAS,  Lender is  willing to amend the Loan  Agreement  on the terms and
conditions set forth herein.

     NOW,  THEREFORE,  in consideration of the mutual  conditions and agreements
set forth herein, and for other good and valuable consideration, the receipt and
sufficiency  of  which is  hereby  acknowledged,  the  parties  hereto  agree as
follows:

     I. Amendment to the Loan Agreement.

          A.  Section 1 of the Loan  Agreement  is hereby  amended by adding the
     following defined term in the appropriate alphabetical order:

          "Fox Valley  Asset  Sale" shall mean the sale of all or  substantially
          all of the  assets of Fox  Valley  pursuant  to the terms of the Asset
          Purchase  Agreement  (the "Fox  Valley  Sale  Agreement")  dated as of
          January 12,  2001,  by and  between Fox Valley and Monroe  Acquisition
          Corp.

          B. Section 9.7 of the Loan  Agreement  is hereby  amended by inserting
     the following  sentence  immediately  following the last sentence  thereof:
     "Notwithstanding  the  foregoing,  Lender hereby  authorizes the Fox Valley
     Asset Sale in accordance  with the Fox Valley Sale Agreement so long as the
     net proceeds of such sale related to the sale of Accounts and  Inventory in
     an  amount  equal  to or in  excess  of  $1,294,000  are (a)  sent via wire
     transfer in immediately available funds to the following account:


                                    Chase Manhattan Bank
                                    4 New York Plaza
                                    New York, NY
                                    ABA 021000021
                    Congress Financial Corporation (Central)
                                    A/C # 322-020557
                      Re: Keystone Consolidated Industries,

          and  (b)  applied  to the  principal  balance  outstanding  under  the
          Revolving Loans pursuant to Section 6.4 hereof."

          C. Section 9.20 of the Loan  Agreement is hereby  amended by inserting
     the following  sentence  immediately  following the last sentence  thereof:
     "Notwithstanding  the  foregoing,  Lender hereby  authorizes the Fox Valley
     Asset Sale in accordance  with the Fox Valley Sale Agreement so long as the
     net proceeds of such sale related to the sale of Accounts and  Inventory in
     an  amount  equal  to or in  excess  of  $1,294,000  are (a)  sent via wire
     transfer in immediately available funds to the account described in Section
     9.7 hereof and (b) applied to the principal  balance  outstanding under the
     Revolving Loans pursuant to Section 6.4 hereof."

          D. Schedule 8.4 and the Information  Certificate of the Loan Agreement
     are  hereby  amended  and  restated  as  Schedule  8.4 and the  Information
     Certificate  attached hereto.  Lender acknowledges and accepts such revised
     Information  Certificate and Schedule 8.4 as being effective as of the date
     hereof for all transactions with Lender after the date hereof.

     II.  Conditions to Effectiveness  of Sixth Amendment.  This Sixth Amendment
shall become  effective on the date (the  "Effective  Date") when Borrower shall
satisfy all of the following conditions:

          A. Sixth  Amendment.  Borrower and Lender shall have duly executed and
     delivered this Sixth Amendment.

          B. Fox Valley  Asset Sale.  The Fox Valley  Asset Sale shall have been
     completed  with the  terms of the Fox  Valley  Sale  Agreement  in form and
     substance satisfactory to Lender, in its sole discretion,  and Lender shall
     be  satisfied,  in its sole  discretion,  that the net  proceeds of the Fox
     Valley  Asset Sale  related to the sale of  Accounts  and  Inventory  in an
     amount  equal to or in  excess  of  $1,294,000  (a) have been sent via wire
     transfer in immediately available funds to the account described in Section
     9.7 hereof and (b) shall be applied to the  principal  balance  outstanding
     under the Revolving Loans pursuant to Section 6.4 hereof.

          C.  Additional   Matters.   Lender  shall  have  received  such  other
     certificates, opinions, UCC financing statements, documents and instruments
     relating to the obligations or the transactions  contemplated hereby as may
     have been  reasonably  requested  by Lender,  and all  corporate  and other
     proceedings  and all other  documents  and all legal  matters in connection
     with the transactions  contemplated hereby shall be reasonably satisfactory
     in form and substance to Lender.

     IV. Representations and Warranties. In order to induce Lender to enter into
this Sixth  Amendment,  Borrower  represents  and  warrants to Lender,  upon the
effectiveness  of this Sixth  Amendment,  which  representations  and warranties
shall survive the execution and delivery of this Sixth Amendment, that:

          A. Borrower is a corporation  duly organized,  validly existing and in
     good standing under the laws of the state of its incorporation;

          B. the execution,  delivery and performance of this Sixth Amendment by
     Borrower are within its corporate  powers and have been duly  authorized by
     all necessary corporate action;

          C.  this  Sixth  Amendment  constitutes  a legal,  valid  and  binding
     obligation of Borrower, enforceable against Borrower in accordance with its
     terms,  except as  enforcement  may be limited by  bankruptcy,  insolvency,
     reorganization,  moratorium or similar laws  affecting the  enforcement  of
     creditors' rights generally, and by general principles of equity;

          D. all of the  representations  and  warranties  contained in the Loan
     Agreement  and in the other  Financing  Agreements  (other than those which
     speak expressly only as of a different date) are true and correct as of the
     date of this Sixth Amendment  after giving effect to this Sixth  Amendment;
     and

          E. as of the date hereof and  following  the  consummation  of the Fox
     Valley  Asset  Sale,  Borrower  is not and  will  not be in  breach  of any
     provision of the Indenture,  including,  without  limitation,  Section 4.16
     thereof.

          V. Miscellaneous.

          A. Effect; Ratification. The amendments set forth herein are effective
     solely for the purpose set forth  herein and shall be limited  precisely as
     written,  and shall not be  deemed  to (i) be a consent  to any  amendment,
     waiver or modification of any other term or condition of the Loan Agreement
     or of any other Financing  Agreements or (ii) prejudice any right or rights
     that Lender may now have or may have in the future  under or in  connection
     with the Loan Agreement or any other Financing  Agreements.  Each reference
     in the Loan Agreement to "this Agreement",  "herein", "hereof" and words of
     like import and each  reference in the other  Financing  Agreements  to the
     Loan Agreement shall mean the Loan Agreement as amended hereby.  This Sixth
     Amendment  shall be  construed in  connection  with and as part of the Loan
     Agreement and all terms, conditions, representations, warranties, covenants
     and  agreements  set forth in the Loan  Agreement and each other  Financing
     Agreement,  except as herein  amended or waived,  are hereby  ratified  and
     confirmed and shall remain in full force and effect.

          B.  Costs and  Expenses.  Borrower  shall pay to Lender on demand  all
     reasonable out-of-pocket costs, expenses, title fees, filing fees and taxes
     paid or payable in connection with the preparation, negotiation, execution,
     delivery, recording,  administration,  collection, liquidation, enforcement
     and defense of the  Obligations,  Lender's rights in the  Collateral,  this
     Sixth Amendment, the Loan Agreement, the other Financing Agreements and all
     other  documents  related  hereto or  thereto,  including  any  amendments,
     supplements or consents which may hereafter be contemplated (whether or not
     executed) or entered into in respect hereof and thereof, including, but not
     limited to: (a) all costs and  expenses of filing or  recording  (including
     Uniform  Commercial  Code  financing   statement  filing  taxes  and  fees,
     documentary  taxes,  intangibles  taxes and  mortgage  recording  and title
     insurance taxes and fees, if  applicable);  (b) costs and expenses and fees
     for title insurance and other  insurance  premiums,  environmental  audits,
     surveys, assessments,  engineering reports and inspections,  appraisal fees
     and  search  fees;  (c) costs and  expenses  of  remitting  loan  proceeds,
     collecting checks and other items of payment; (d) charges, fees or expenses
     charged  by any bank or  issuer  in  connection  with the  Letter of Credit
     Accommodations;  (e) costs and expenses of preserving  and  protecting  the
     Collateral;  (f) costs and  expenses  paid or incurred in  connection  with
     obtaining payment of the Obligations,  enforcing the security interests and
     liens of Lender,  selling or otherwise  realizing upon the Collateral,  and
     otherwise  enforcing  the  provisions  of this  Sixth  Amendment,  the Loan
     Agreement and the other  Financing  Agreements or defending any claims made
     or threatened  against Lender arising out of the transactions  contemplated
     hereby and thereby  (including,  without  limitation,  preparations for and
     consultations   concerning  any  such  matters);   and  (g)  the  fees  and
     disbursements  of  counsel   (including  legal  assistants)  to  Lender  in
     connection with the foregoing.

          C. Certain Waivers;  Release.  Although Borrower does not believe that
     it has any claims  against  Lender,  it is willing to provide Lender with a
     general  and  total  release  of all such  claims in  consideration  of the
     benefits  which  Borrower  will receive  pursuant to this Sixth  Amendment.
     Accordingly,  Borrower  for itself and any  successor  of  Borrower  hereby
     knowingly,   voluntarily,   intentionally  and  irrevocably   releases  and
     discharges  Lender  and its  respective  officers,  directors,  agents  and
     counsel  (each a  "Releasee")  from any and all actions,  causes of action,
     suits, sums of money,  accounts,  reckonings,  bonds,  bills,  specialties,
     covenants,  contracts,  controversies,   agreements,  promises,  variances,
     trespasses,  damages, judgments, extents, executions,  losses, liabilities,
     costs, expenses,  debts, dues, demands,  obligations or other claims of any
     kind whatsoever,  in law, admiralty or equity, which Borrower ever had, now
     has or hereafter  can,  shall or may have against any Releasee for, upon or
     by reason of any matter,  cause or thing  whatsoever  from the beginning of
     the world to the date of this Sixth Amendment.

          D. Counterparts. This Sixth Amendment may be executed in any number of
     counterparts,  each  such  counterpart  constituting  an  original  but all
     together constituting one and the same instrument.

          E. Severability.  Any provision contained in this Sixth Amendment that
     is held to be  inoperative,  unenforceable  or invalid in any  jurisdiction
     shall, as to that  jurisdiction,  be inoperative,  unenforceable or invalid
     without affecting the remaining  provisions of this Sixth Amendment in that
     jurisdiction or the operation, enforceability or validity of that provision
     in any other jurisdiction.

          F.  GOVERNING  LAW.  THIS SIXTH  AMENDMENT  SHALL BE  GOVERNED  BY AND
     CONSTRUED  AND  INTERPRETED  IN  ACCORDANCE  WITH THE LAWS OF THE  STATE OF
     ILLINOIS.

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<PAGE>



          IN WITNESS  WHEREOF,  the  parties  hereto  have  executed  this Sixth
     Amendment as of the date first above written.


                                  CONGRESS FINANCIAL CORPORATION (CENTRAL)


                                  By
                                     ------------------------------------------
                                  Name:
                                     ------------------------------------------
                                  Title:
                                     ------------------------------------------

                                  KEYSTONE CONSOLIDATED INDUSTRIES, INC.


                                  By
                                    -------------------------------------------
                                  Name:
                                    -------------------------------------------
                                  Title:
                                    -------------------------------------------


<PAGE>




                                     CONSENT

     By Guarantee dated September 27, 1996 (as amended,  the  "Guarantee"),  the
undersigned (the "Guarantor") guaranteed to Lender (as defined therein), subject
to the terms,  conditions and obligations set forth therein,  the prompt payment
and performance of all of the Guaranteed  Obligations (as defined therein).  The
Guarantor  consents to Borrower's  execution of the foregoing Sixth Amendment to
Loan Agreement (the "Amendment;"  capitalized terms not otherwise defined herein
shall have the meaning  ascribed to them in the Amendment) and  acknowledges the
continued  validity,  enforceability  and  effectiveness  of the Guarantee  with
respect to all loans,  advances and  extensions  of credit to Borrower,  whether
heretofore  or  hereafter  made,  together  with all  interests  thereon and all
expenses in connection therewith.

                              SHERMAN WIRE COMPANY


                              By
                                 ----------------------------------------------
                              Name:
                                 ----------------------------------------------
                              Title:
                                 ----------------------------------------------




<PAGE>




                                     CONSENT

     By  Confirmation  Agreement  dated  September  27,  1996,  relating to that
Amendment,  Ratification and  Confirmation of Secured  Guaranty  Agreement dated
December  29,  1995,  relating  to,  among  other  things the  Secured  Guaranty
Agreement  dated  October  16,  1987   (collectively,   the  "Guarantee"),   the
undersigned (the "Guarantor") guaranteed to Lender (as defined therein), subject
to the terms,  conditions and obligations set forth therein,  the prompt payment
and performance of all of the Obligations  (as defined  therein).  The Guarantor
consents to  Borrower's  execution  of the  foregoing  Sixth  Amendment  to Loan
Agreement (the "Amendment;" capitalized terms not otherwise defined herein shall
have  the  meaning  ascribed  to them in the  Amendment)  and  acknowledges  the
continued  validity,  enforceability  and  effectiveness  of the Guarantee  with
respect to all loans,  advances and  extensions  of credit to Borrower,  whether
heretofore  or  hereafter  made,  together  with all  interests  thereon and all
expenses in connection therewith.

                                    SHERMAN WIRE OF CALDWELL, INC.


                                    By
                                      -----------------------------------------
                                    Name:
                                      -----------------------------------------
                                    Title:
                                      -----------------------------------------



<PAGE>


                                     CONSENT

     By  Confirmation  Agreement  dated  September  27,  1996,  relating to that
Guarantee  and  Waiver  and Rider No. 1 to  Guarantee  and  Waiver,  each  dated
December 30, 1993 (as amended,  collectively,  the "Guarantee"), the undersigned
(the  "Guarantor")  guaranteed  to Lender (as defined  therein),  subject to the
terms,  conditions and  obligations  set forth  therein,  the prompt payment and
performance  of all of the  Obligations  (as  defined  therein).  The  Guarantor
consents to  Borrower's  execution  of the  foregoing  Sixth  Amendment  to Loan
Agreement (the "Amendment;" capitalized terms not otherwise defined herein shall
have  the  meaning  ascribed  to them in the  Amendment)  and  acknowledges  the
continued  validity,  enforceability  and  effectiveness  of the Guarantee  with
respect to all loans,  advances and  extensions  of credit to Borrower,  whether
heretofore  or  hereafter  made,  together  with all  interests  thereon and all
expenses in connection therewith.

                                  FOX VALLEY STEEL AND WIRE COMPANY


                                  By
                                    -------------------------------------------
                                  Name:
                                    -------------------------------------------
                                  Title:
                                    -------------------------------------------