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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 ANv7j4t9lVIFF+90yNtkqQ==

<SEC-DOCUMENT>0001209191-05-064741.txt : 20051220
<SEC-HEADER>0001209191-05-064741.hdr.sgml : 20051220
<ACCEPTANCE-DATETIME>20051220214643
ACCESSION NUMBER:		0001209191-05-064741
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20041210
FILED AS OF DATE:		20051220
DATE AS OF CHANGE:		20051220

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			HINDMAN CRAIG
		CENTRAL INDEX KEY:			0001307305

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-04797
		FILM NUMBER:		051276880

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		(847)657-4077

	MAIL ADDRESS:	
		STREET 1:		ILLINOIS TOOL WORKS INC.
		STREET 2:		3600 WEST LAKE AVENUE
		CITY:			GLENVIEW
		STATE:			IL
		ZIP:			60026

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ILLINOIS TOOL WORKS INC
		CENTRAL INDEX KEY:			0000049826
		STANDARD INDUSTRIAL CLASSIFICATION:	GENERAL INDUSTRIAL MACHINERY & EQUIPMENT [3560]
		IRS NUMBER:				361258310
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		3600 W LAKE AVE
		CITY:			GLENVIEW
		STATE:			IL
		ZIP:			60025-5811
		BUSINESS PHONE:		8476574106

	MAIL ADDRESS:	
		STREET 1:		3600 WEST LAKE AVENUE
		CITY:			GLENVIEW
		STATE:			IL
		ZIP:			60025-5811
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>boc00921_05ch.xml
<DESCRIPTION>MAIN DOCUMENT DESCRIPTION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2004-12-10</periodOfReport>

    <dateOfOriginalSubmission>2004-12-13</dateOfOriginalSubmission>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000049826</issuerCik>
        <issuerName>ILLINOIS TOOL WORKS INC</issuerName>
        <issuerTradingSymbol>ITW</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001307305</rptOwnerCik>
            <rptOwnerName>HINDMAN CRAIG</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>ILLINOIS TOOL WORKS INC.</rptOwnerStreet1>
            <rptOwnerStreet2>3600 WEST LAKE AVENUE</rptOwnerStreet2>
            <rptOwnerCity>GLENVIEW</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60026</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Executive V.P.</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
                <footnoteId id="F1"/>
                <footnoteId id="F2"/>
                <footnoteId id="F3"/>
            </securityTitle>
            <transactionDate>
                <value>2004-12-10</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>0</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5340</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Includes grant of restricted stock vesting over 3 year period 12/16/2003, 12/16/2004, 12/16/2005.</footnote>
        <footnote id="F2">Includes grant of restricted stock vesting over 3 year period 12/16/2004, 12/16/2005, 12/18/2006.</footnote>
        <footnote id="F3">Shares were inadvertently overstated.  Amount of securities beneficially owned at initial filing should have been 5,340 not 6,700 as reported (Typographical Error)</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Craig Hindman by James H. Wooten, Jr., V.P., Gen. Counsel &amp; Secretary  Attorney-In-Fact  POA on File</signatureName>
        <signatureDate>2005-12-20</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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