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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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 lbqY5sz6hcbu13UgSphe2Q==

<SEC-DOCUMENT>0001140361-10-004760.txt : 20100208
<SEC-HEADER>0001140361-10-004760.hdr.sgml : 20100208
<ACCEPTANCE-DATETIME>20100208182653
ACCESSION NUMBER:		0001140361-10-004760
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100204
FILED AS OF DATE:		20100208
DATE AS OF CHANGE:		20100208

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BLACK & DECKER CORP
		CENTRAL INDEX KEY:			0000012355
		STANDARD INDUSTRIAL CLASSIFICATION:	METALWORKING MACHINERY & EQUIPMENT [3540]
		IRS NUMBER:				520248090
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		701 E JOPPA RD
		CITY:			TOWSON
		STATE:			MD
		ZIP:			21286
		BUSINESS PHONE:		4107163900

	MAIL ADDRESS:	
		STREET 1:		701 EAST JOPPA ROAD
		STREET 2:		MAIL STOP TW 290
		CITY:			TOWSON
		STATE:			MD
		ZIP:			21286

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	BLACK & DECKER MANUFACTURING CO
		DATE OF NAME CHANGE:	19850206

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			REEVES STEPHEN F
		CENTRAL INDEX KEY:			0001215871

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-01553
		FILM NUMBER:		10582031

	MAIL ADDRESS:	
		STREET 1:		BLACK & DECKER CORP
		STREET 2:		701 EAST JOPPA ROAD
		CITY:			TOWSON
		STATE:			MD
		ZIP:			21286
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2010-02-04</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000012355</issuerCik>
        <issuerName>BLACK &amp; DECKER CORP</issuerName>
        <issuerTradingSymbol>BDK</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001215871</rptOwnerCik>
            <rptOwnerName>REEVES STEPHEN F</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O THE BLACK &amp; DECKER CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>701 EAST JOPPA ROAD</rptOwnerStreet2>
            <rptOwnerCity>TOWSON</rptOwnerCity>
            <rptOwnerState>MD</rptOwnerState>
            <rptOwnerZipCode>21286</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Sr. Vice President and CFO</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2010-02-04</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>5000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>69.7048</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>18049</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>100</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Child</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>100</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Child</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>100</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Child</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1447.3468</value>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Retirement Savings Plan</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">The sale prices of these transactions ranged from $69.69 to $69.73 per share. Complete information regarding the number of shares sold at each separate price will be provided upon request to the SEC, the Corporation, or a security holder of the Corporation.</footnote>
        <footnote id="F2">The reporting person disclaims beneficial ownership of the shares held by his children and this report should not be deemed an admission that the reporting person is the beneficial owner of his children's shares for purposes of Section 16 or for any other purpose.</footnote>
        <footnote id="F3">Includes approximately 30.5304 shares acquired during 2009 under The Black &amp; Decker Retirement Savings Plan.  The information in this report is based on The Black &amp; Decker Retirement Savings Plan statement dated as of December 31, 2009.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Natalie A. Shields, Attorney-in-Fact</signatureName>
        <signatureDate>2010-02-08</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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