Exhibit 10.6

                     INTERCORPORATE SERVICES AGREEMENT

      This INTERCORPORATE SERVICES AGREEMENT (the "Agreement"),  effective as of
January 1, 2000,  amends and  supersedes  that certain  Intercorporate  Services
Agreement  effective  as of January 1, 1999 between NL  INDUSTRIES,  INC., a New
Jersey corporation ("NL"), and COMPX INTERNATIONAL INC., a Delaware  corporation
("CompX").

                                   Recitals

      A. NL provides  CompX (i) certain  occupancy and related  office  services
(the "Occupancy and Related Office Services"),  which services include,  without
limitation,  office  space  that  CompX's  personnel  currently  occupy  at NL's
corporate offices at Two Greenspoint  Plaza, 16825 Northchase Drive, Suite 1200,
Houston, Texas and mail, telecommunication,  copying and other reasonable office
services related to such occupancy and (ii) certain insurance,  risk management,
loss control, computer support, and internal audit services as set forth in this
Agreement.

      B. The terms of this  Agreement are no less  favorable to CompX than could
otherwise be obtained from a third party for comparable services.

      C. CompX desires to continue  receiving the services presently provided by
NL and  affiliates  of NL and NL is willing to continue to provide such services
under the terms of this Agreement.

                                  Agreement

      For and in  consideration  of the  mutual  premises,  representations  and
covenants herein contained, the parties hereto mutually agree as follows:

      Section 1.  Services  Provided.  NL agrees to make  available to CompX the
following  services (the  "Services") to be rendered by the internal staff of NL
and affiliates of NL:

      (a) the Occupancy and Related  Office  Services (as outlined in Attachment
          1);

      (b) certain administration and management services with respect to CompX's
          insurance and risk management needs, including:

                  (i)   management  of  claims  (including   insured  and  self-
                        insured workers compensation and liability claims);

                  (ii)  budgeting and related activities;

                  (iii) coordination of property loss control program; and

                  (iv)  administration of CompX's insurance  program,  excluding
                        all employee benefit and welfare related programs;





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      (c) consultation and assistance in performing internal audit projects,  as
          requested;

      (d) computer related support services;

      (e) such other  services as may be requested by CompX or deemed  necessary
          and proper from time to time; and

      (f) use of corporate aircraft.

      Section 2. Miscellaneous  Services. It is the intent of the parties hereto
that NL provide only the Services  requested by CompX in connection with routine
administrative functions related to the ongoing operations of CompX and not with
respect to special projects,  including corporate investments,  acquisitions and
divestitures.  The parties  hereto  contemplate  that the  Services  rendered in
connection with the conduct of CompX's business will be on a scale comparable to
that existing on the effective date of this Agreement,  and that adjustments may
be required  to the terms of this  Agreement  in the event of special  projects,
including  corporate  investments,  acquisitions  and  divestitures.  CompX will
continue  to bear all other  costs  required  for  outside  services,  and it is
expressly  understood  that NL assumes no liability for any expenses or services
other than those stated in Section 1.

      Section 3. Fee for  Services.  During the Term (as  defined  below) of the
Agreement,  CompX  shall pay to NL an annual fee of  $132,800  for the  Services
described  in  subsections  1(a),  1(b),  and 1(e) above  payable  in  quarterly
installments of $33,200 plus all  out-of-pocket  expenses incurred in connection
with the  performance of such Services  described in subsections  1(b) and 1(e).
CompX will pay to NL within  thirty (30) days after  receipt of an invoice (such
invoices to occur no more frequently than once per month) an amount equal to the
product  of $500  multiplied  by the  number of days  devoted  by NL's  internal
auditors to  providing  Services  described in  subsection  1(c) above times the
number of internal  auditors  providing  such Services  plus all out-of-  pocket
expenses  incurred in their  performance of such Services.  CompX will pay to NL
within  thirty  (30) days after  receipt of an invoice,  an amount  equal to the
product of $50  multiplied  by the number of hours  devoted by NL's  information
systems personnel  providing such Services described in subsection 1(d) plus all
out-of-pocket  expenses incurred in the performance of such Services.  Regarding
Services  described in subsection  1(f), CompX will pay to NL within thirty (30)
days  after  receipt of an  invoice  an amount  equal to  CompX's  share of NL's
corporate  aircraft  expenses  which  includes  CompX's  share  of  the  monthly
management  fee (computed on a per hour basis) and actual flight hour costs at a
rate of $1,767  per hour  (subject  to  annual  escalation)  plus fuel  variable
charges,  segment fees and excise taxes.  Notwithstanding the foregoing,  in the
event that CompX determines,  in its sole discretion,  that it no longer desires
certain of the Services or NL  determines,  in its sole  discretion,  that it no
longer  desires  to  provide  certain  of the  Services,  then  CompX or NL,  as
appropriate,  shall provide the other party with a thirty (30) day prior written
notice of cancellation  describing the Services to be terminated or discontinued
and  CompX  and NL during  such  thirty-day  period  shall  agree to a  pro-rata
reduction  of the  fees  due  hereunder  for  such  terminated  or  discontinued
Services.



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      Section 4. Original  Term.  Subject to the provisions of Section 5 hereof,
the original  term of this  Agreement  shall be from January 1, 2000 to December
31, 2000.

      Section  5.   Extensions.   This   Agreement   shall  be   extended  on  a
quarter-to-quarter  basis  after the  expiration  of its  original  term  unless
written  notification is given by NL or CompX thirty (30) days in advance of the
first day of each successive  quarter or unless it is superseded by a subsequent
written agreement of the parties hereto.

      Section 6. Limitation of Liability.  In providing its Services  hereunder,
NL shall  have a duty to act,  and to cause its agents to act,  in a  reasonably
prudent manner, but neither NL nor any officer,  director,  employee or agent of
NL or its  affiliates  shall be liable to CompX  for any  error of  judgment  or
mistake of law or for any loss incurred by CompX in  connection  with the matter
to  which  this  Agreement  relates,   except  a  loss  resulting  from  willful
misfeasance, bad faith or gross negligence on the part of NL.

      Section 7.  Indemnification of NL by CompX. CompX shall indemnify and hold
harmless  NL,  its  affiliates  and their  respective  officers,  directors  and
employees  from and against any and all losses,  liabilities,  claims,  damages,
costs and expenses (including  attorneys' fees and other expenses of litigation)
to which NL or any such person may become subject to arising out of the Services
provided  by NL to CompX  hereunder,  provided  that  such  indemnity  shall not
protect any person against any liability to which such person would otherwise be
subject to by reason of willful  misfeasance,  bad faith or gross  negligence on
the part of such person.

      Section 8. Further  Assurances.  Each of the parties  will make,  execute,
acknowledge and deliver such other instruments and documents,  and take all such
other actions,  as the other party may reasonably  request and as may reasonably
be required in order to effectuate  the purposes of this  Agreement and to carry
out the terms hereof.

      Section 9. Notices.  All communications  hereunder shall be in writing and
shall be addressed to:

            If to NL:         NL Industries, Inc.
                              16825 Northchase Drive, Suite 1200
                              Houston, Texas 77060
                              Attention: General Counsel

            If to COMPX:      CompX International Inc.
                              16825 Northchase Drive, Suite 1200
                              Houston, Texas 77060
                              Attention: Chairman of the Board

or such other address as the parties shall have specified in writing.



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      Section 10.  Amendment and  Modification.  Neither this  Agreement nor any
term hereof may be  changed,  waived,  discharged  or  terminated  other than by
agreement in writing signed by the parties hereto.

      Section 11.  Successors and Assigns.  This Agreement shall be binding upon
and inure to the  benefit of NL and CompX and their  respective  successors  and
assigns,  except that neither  party may assign its rights under this  Agreement
without the prior written consent of the other party.

      Section 12.  Governing  Law.  This  Agreement  shall be  governed  by, and
construed and interpreted in accordance with, the laws of the state of Texas.

      IN WITNESS  WHEREOF,  the parties  hereto have caused this Agreement to be
duly executed and delivered as of the date first above written.


                                        NL INDUSTRIES, INC.




                                        By: /s/ Robert D. Hardy
                                        Robert D. Hardy
                                        Vice President



                                        COMPX INTERNATIONAL INC.




                                        By: /s/ John A. Miller
                                        John A. Miller
                                        Vice President




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                               Attachment No. 1








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