Exhibit 4.11




                               (FACE OF DEBENTURE)

                              SILGAN HOLDINGS INC.

                        Subordinated Debentures due 2006


No.                                                    $


                   SILGAN  HOLDINGS  INC., a Delaware  corporation  ("Holdings,"
which term includes any successor  corporation) under the Indenture  hereinafter
referred to, for value  received,  promises to pay to  _________________  or its
registered assigns, the principal sum of __________________ on July 15, 2006.

                   Interest Payment Dates: January 15 and July 15, commencing on
the Issue Date of the Debentures.

                   Regular Record Dates: January 1 and July 1.

                   Reference  is hereby made to the further  provisions  of this
Debenture set forth on the reverse hereof,  which further  provisions  shall for
all purposes have the same effect as if set forth at this place.

                   IN WITNESS WHEREOF,  Holdings has caused this Debenture to be
signed manually or by facsimile by its duly authorized officers.

                                       SILGAN HOLDINGS INC.


                                       By:-----------------------------
                                          Chairman of the Board and
                                          Chief Executive Officer


                                       By:-----------------------------
                                          Executive Vice President
                                          and Chief Financial Officer




                                       A-1





                (Form of Trustee's Certificate of Authentication)

This  is  one  of  the  Subordinated   Debentures  due  2006  described  in  the
within-mentioned Indenture.


Authentication Date: ___________, _____

                                       FLEET NATIONAL BANK,
                                       as Trustee


                                       By:-----------------------------
                                          Authorized Signature




                                       A-2





                           (REVERSE SIDE OF DEBENTURE)

                              SILGAN HOLDINGS INC.

                        Subordinated Debentures due 2006




1.  Principal and Interest.
    -----------------------

         Holdings will pay the principal of this Debenture on July 15, 2006.

         Holdings  promises  to pay  interest  on the  principal  amount of this
Debenture on each Interest Payment Date commencing on the first Interest Payment
Date after the date that this  Debenture  is issued  (the  "Issue  Date") as set
forth  below,  at a rate per annum (the  "Interest  Rate") equal to the dividend
rate in effect on the Closing Date with respect to Holdings' 13-1/4%  Cumulative
Exchangeable Redeemable Preferred Stock.

         Interest will be payable  semiannually (to the holders of record of the
Debentures at the close of business on January 1 or July 1 immediately preceding
the applicable  Interest Payment Date) in cash or, on or prior to July 15, 2000,
at the option of Holdings,  in additional  Debentures in an aggregate  principal
amount  equal to such  interest,  in  arrears  on each  Interest  Payment  Date,
commencing  on the first  Interest  Payment Date after the Issue Date.  From and
after the  Interest  Payment Date  following  July 15,  2000,  interest  will be
payable  only in cash.  Interest  on the  Debentures  will  accrue from the most
recent date to which  interest  has been paid or, if no interest  has been paid,
from the Issue  Date;  provided  that,  if there is no  existing  default in the
payment of interest  and if this  Debenture is  authenticated  between a Regular
Record  Date  referred to on the face  hereof and the next  succeeding  Interest
Payment Date,  interest shall accrue from such Interest  Payment Date.  Interest
will be computed on the basis of a 360-day year of twelve  30-day months and the
actual number of days elapsed.

         Holdings shall pay interest on overdue  principal and premium,  if any,
and interest on overdue  installments of interest,  to the extent lawful, at the
rate per annum of the Interest Rate plus 2%.

2.  Method of Payment.
    ------------------

         Holdings will pay interest (except defaulted interest) on the principal
amount of the  Debentures  on each January 15 and July 15,  commencing  with the
first  such date  after the Issue  Date,  to the  persons  who are  Holders  (as
reflected  in the  Security  Register) at the close of business on the January 1
and  July 1  immediately  preceding  the  Interest  Payment  Date,  in  each


                                       A-3





case,  even  if the  Debenture  is  canceled  on  registration  of  transfer  or
registration of exchange after such record date;  provided that, with respect to
the  payment  of  principal,  Holdings  will make  payment  to the  Holder  that
surrenders this Debenture to a Paying Agent on or after July 15, 2006.  Holdings
will pay  principal,  premium,  if any, and interest  (other than  interest that
Holdings pays by issuing  additional  Debentures)  in money of the United States
that at the time of payment is legal  tender for  payment of public and  private
debts. However, Holdings may pay principal, premium, if any, and interest by its
check  payable  in such  money.  It may mail an  interest  check  to a  Holder's
registered  address (as reflected in the Security  Register) . If a payment date
is a date other than a Business  Day at a place of payment,  payment may be made
at that place on the next  succeeding day that is a Business Day and no interest
shall accrue for the intervening period.

3.  Paying Agent and Registrar.
    ---------------------------

         Initially,  the Trustee will act as authenticating  agent, Paying Agent
and Registrar.  Holdings may change any  authenticating  agent,  Paying Agent or
Registrar  without notice.  Holdings,  any Subsidiary or any Affiliate of any of
them may act as Paying Agent, Registrar or co-registrar.

4.  Indenture; Limitations.
    -----------------------

         Holdings issued the Debentures  under an Indenture dated as of July 22,
1996 (the "Indenture") between Holdings and Fleet National Bank, as trustee (the
"Trustee"). Capitalized terms herein are used as defined in the Indenture unless
otherwise  indicated.  The terms of the  Debentures  include those stated in the
Indenture  and  those  made  part of the  Indenture  by  reference  to the Trust
Indenture  Act. The  Debentures  are subject to all such terms,  and Holders are
referred to the  Indenture  and the Trust  Indenture  Act for a statement of all
such  terms.  To the extent  permitted  by  applicable  law, in the event of any
inconsistency  between  the  terms  of  this  Debenture  and  the  terms  of the
Indenture, the terms of the Indenture shall control.

         The  Debentures  are general  obligations  of Holdings.  The  Indenture
limits  the  original  aggregate  principal  amount  of  the  Debentures  to the
aggregate  liquidation  preference  of, and  accrued  but unpaid  dividends  on,
Holdings'  13-1/4%  Cumulative  Exchangeable  Redeemable  Preferred Stock on the
Closing Date.

5.  Optional Redemption.
    --------------------

         (a) The  Debentures  may be  redeemed  at any time on or after July 15,
2000, at Holdings'  option,  in whole or in part, upon not less than 30 nor more
than 60 days' prior written notice mailed by  first-class  mail to each Holder's
last address as it appears in the Security  Register,  at the Redemption  Prices
(expressed as a percentage of the principal amount thereof) set forth below,


                                       A-4





plus an amount in cash equal to all accumulated  and unpaid interest  thereon to
the Redemption  Date,  subject to the right of Holders of record on the relevant
Regular Record Date to receive  interest due on an Interest Payment Date that is
on or prior to the  Redemption  Date,  if redeemed  during the  12-month  period
beginning July 15 of each of the years set forth below.

Year                                                     Percentage

2000.........................................             109.938%
2001.........................................             106.625%
2002.........................................             103.313%
2003 and thereafter .........................             100.000%


         (b) In addition,  on or prior to July 15, 2000, Holdings may redeem all
(but not less than all) outstanding  Debentures,  at a Redemption Price equal to
110% of the principal  amount  thereof,  plus accrued and unpaid interest to the
Redemption  Date,  out of the net  proceeds  of any  sale of its  common  stock,
provided that such redemption occurs within 180 days after  consummation of such
sale.

6.  Notice of Redemption.
    ---------------------

         Notice of redemption  will be mailed at least 30 days but not more than
60 days before the Redemption  Date to each Holder of a Debenture to be redeemed
at his last  address as it  appears  in the  Security  Register.  Debentures  in
original  denominations  larger than $1.00 may be redeemed in part. On and after
the  Redemption  Date,  interest  ceases to accrue on  Debentures or portions of
Debentures called for redemption, unless Holdings defaults in the payment of the
Redemption Price.

7.  Denominations; Transfer; Exchange.
    ----------------------------------

         The  Debentures  are  in  registered   form  without  coupons  only  in
denominations  in original  principal  amount of $1.00 and multiples in original
principal  amount of $1.00.  A Holder may  register  the transfer or exchange of
Debentures in accordance with the Indenture. The Registrar may require a Holder,
among other things, to furnish  appropriate  endorsements and transfer documents
and to pay any taxes and fees required by law or permitted by the Indenture. The
Registrar need not register the transfer or exchange of any Debentures  selected
for  redemption.  Also,  it need not  register  the  transfer or exchange of any
Debentures  for a period  of 15 days  before a  selection  of  Debentures  to be
redeemed is made.

8.  Persons Deemed Owners.
    ----------------------

         A Holder may be treated as the owner of a Debenture for all purposes.



                                       A-5





9.  Unclaimed Money.
    ----------------

         If money for the  payment of  principal,  premium,  if any, or interest
remains  unclaimed for two years,  the Trustee and the Paying Agent will pay the
money back to Holdings at its request. After that, Holders entitled to the money
must look to Holdings for payment,  unless an abandoned  property law designates
another  Person,  and all  liability  of the Trustee and such Paying  Agent with
respect to such money shall cease.

10. Discharge Prior to Redemption or Maturity.
    ------------------------------------------

         If  Holdings  deposits  with  the  Trustee  money  or  U.S.  Government
Obligations  sufficient to pay the then  outstanding  principal of, premium,  if
any,  and accrued  interest  (if any) on the  Debentures  (a) to  redemption  or
maturity,  Holdings  will be discharged  from the Indenture and the  Debentures,
except in certain  circumstances  for certain sections  thereof,  and (b) to the
Stated Maturity, Holdings will be discharged from certain covenants set forth in
the Indenture.

11.  Amendment; Supplement: Waiver.
     ------------------------------

         Subject to certain  exceptions,  the Indenture or the Debentures may be
amended or  supplemented  with the consent of the Holders of at least a majority
in  aggregate  principal  amount of the  Debentures  then  outstanding,  and any
existing default or compliance with any provision may be waived with the consent
of the Holders of a majority in  aggregate  principal  amount of the  Debentures
then  outstanding.  Without  notice to or consent  of any  Holder,  the  parties
thereto may amend or supplement  the Indenture or the Debentures to, among other
things, cure any ambiguity, defect or inconsistency,  provide for uncertificated
Debentures in addition to or in place of  certificated  Debentures  and make any
change that does not adversely affect the rights of any Holder.

12.  Restrictive Covenants.
     ----------------------

         The Indenture  imposes  certain  limitations on the ability of Holdings
and  its  Subsidiaries  to  pay  dividends,  make  investments  in  Unrestricted
Subsidiaries,  sell assets,  engage in  transactions  with  Affiliates  or incur
Indebtedness.  At the end of each fiscal  quarter,  Holdings  must report to the
Trustee on compliance with such limitations.

13.  Successor Corporations.
     -----------------------

         When a successor  person or other entity assumes all the obligations of
its predecessor under the Debentures and the Indenture,  the predecessor  person
will be released from those obligations.



                                       A-6





14.  Defaults and Remedies.
     ----------------------

         Events of Default  include:  a default in payment of  principal  on the
Debentures;  default in the payment of interest on the  Debentures  for 30 days;
failure by  Holdings  for 30 days after  notice to it to comply  with any of its
other  agreements in the Indenture;  certain events of bankruptcy or insolvency;
certain final judgments which remain undischarged; and certain events of default
on other Indebtedness of Holdings.

         If an Event of  Default,  as  defined in the  Indenture,  occurs and is
continuing,  the Trustee or the Holders of at least 25% in  aggregate  principal
amount of the  Debentures  may declare all the Debentures to be due and payable.
If a bankruptcy  or  insolvency  default with respect to Holdings  occurs and is
continuing, the Debentures automatically become due and payable. Holders may not
enforce the Indenture or the Debentures except as provided in the Indenture. The
Trustee  may  require  indemnity  satisfactory  to it  before  it  enforces  the
Indenture or the Debentures. Subject to certain limitations, Holders of at least
a majority in principal amount of the Debentures then outstanding may direct the
Trustee in its exercise of any trust or power.

15.  Subordination.
     --------------

         The  payment  of the  Debentures  will,  to the extent set forth in the
Indenture,  be subordinated in right of payment to the prior payment in full, in
cash or cash equivalents, of all Senior Indebtedness.

16.  Trustee Dealings with Holdings.
     -------------------------------

         The  Trustee  under  the  Indenture,  in its  individual  or any  other
capacity,  may make loans to,  accept  deposits  from and perform  services  for
Holdings  or  its  Affiliates  and  may  otherwise  deal  with  Holdings  or its
Affiliates as if it were not the Trustee.

17.  No Recourse Against Others.
     ---------------------------

         No stockholder,  director,  officer,  employee or incorporator as such,
past, present or future, of Holdings or any successor corporation shall have any
liability for any  obligations of Holdings under the Debentures or the Indenture
or for any claim  based on, in respect of or by reason of, such  obligations  or
their  creation.  Each Holder by  accepting a Debenture  waives and releases all
such  liability.  The waiver and release are part of the  consideration  for the
issuance of the Debentures.



                                       A-7





18.  Authentication.
     ---------------

         This Debenture  shall not be valid until the Trustee or  authenticating
agent  signs  the  certificate  of  authentication  on the  other  side  of this
Debenture.

19.  Abbreviations.
     --------------

         Customary  abbreviations  may be used in the  name  of a  Holder  or an
assignee,  such as:  TEN COM (= tenants  in  common),  TEN ENT (= tenants by the
entireties),  JT TEN (= joint  tenants  with  right of  survivorship  and not as
tenants in common),  CUST (=  Custodian)  and U/G/M/A (= Uniform Gifts to Minors
Act).

                   Holdings will furnish to any Holder upon written  request and
without charge a copy of the Indenture.  Requests may be made to Silgan Holdings
Inc., 4 Landmark Square, Stamford, CT 06901, Attention: Harold J. Rodriguez, Jr.



                                       A-8





I or we assign and transfer this Debenture to:

Please insert social security or other identifying number of
assignee

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

                   Print or type  name,  address  and zip code of  assignee  and
irrevocably appoint  ____________________________________  as agent, to transfer
this Debenture on the books of Holdings. The agent may substitute another to act
for him. Dated ______________________ Signed _____________________


- --------------------------------------------------------------------------------
(Sign exactly as the name appears on the other side of this
Debenture)




                                       A-9





                       OPTION OF HOLDER TO ELECT PURCHASE



                  If you  wish to have  this  Debenture  purchased  by  Holdings
pursuant to Section 4.8 or 4.9 of the Indenture, check the Box: [ ].

                  If you wish to have a portion of this  Debenture  purchased by
Holdings  pursuant to Section 4.8 or 4.9 of the Indenture,  state the amount (in
original principal amount):

                                $---------------



Date:-----------------               Your Signature:--------------------

(Sign exactly as your name appears on the other side of this Debenture)

Signature Guarantee:     ----------------------                   






                                      A-10