<SEC-DOCUMENT>0001003078-23-000074.txt : 20230630
<SEC-HEADER>0001003078-23-000074.hdr.sgml : 20230630
<ACCEPTANCE-DATETIME>20230630112633
ACCESSION NUMBER:		0001003078-23-000074
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20230629
FILED AS OF DATE:		20230630
DATE AS OF CHANGE:		20230630

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Dongre Neal
		CENTRAL INDEX KEY:			0001921892

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-14130
		FILM NUMBER:		231060329

	MAIL ADDRESS:	
		STREET 1:		C/O MSC INDUSTRIAL DIRECT CO., INC.
		STREET 2:		515 BROADHOLLOW ROAD
		CITY:			MELVILLE
		STATE:			NY
		ZIP:			11747

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MSC INDUSTRIAL DIRECT CO INC
		CENTRAL INDEX KEY:			0001003078
		STANDARD INDUSTRIAL CLASSIFICATION:	WHOLESALE-INDUSTRIAL MACHINERY & EQUIPMENT [5084]
		IRS NUMBER:				113289165
		STATE OF INCORPORATION:			NY
		FISCAL YEAR END:			0902

	BUSINESS ADDRESS:	
		STREET 1:		515 BROADHOLLOW ROAD
		CITY:			MELVILLE
		STATE:			NY
		ZIP:			11747
		BUSINESS PHONE:		516-812-2000

	MAIL ADDRESS:	
		STREET 1:		515 BROADHOLLOW ROAD
		CITY:			MELVILLE
		STATE:			NY
		ZIP:			11747
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_168813878271338.xml
<DESCRIPTION>FORM 4
<TEXT>
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    <issuer>
        <issuerCik>0001003078</issuerCik>
        <issuerName>MSC INDUSTRIAL DIRECT CO INC</issuerName>
        <issuerTradingSymbol>MSM</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001921892</rptOwnerCik>
            <rptOwnerName>Dongre Neal</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O MSC INDUSTRIAL DIRECT CO., INC.</rptOwnerStreet1>
            <rptOwnerStreet2>515 BROADHOLLOW ROAD</rptOwnerStreet2>
            <rptOwnerCity>MELVILLE</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>11747</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>VP, Gen Counsel &amp; Corp Sec</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

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                <transactionPricePerShare>
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            <transactionCoding>
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    <derivativeTable>
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            <transactionDate>
                <value>2023-06-29</value>
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                <transactionPricePerShare>
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                <transactionAcquiredDisposedCode>
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            <exerciseDate>
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            <expirationDate>
                <footnoteId id="F4"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock, $0.001 par value</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>123.0</value>
                </underlyingSecurityShares>
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                </directOrIndirectOwnership>
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        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Dividend Equivalent Units</value>
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                <value>2023-06-29</value>
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                    <value>20.033</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
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                    <value>D</value>
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            <expirationDate>
                <footnoteId id="F2"/>
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            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock, $0.001 par value</value>
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                <sharesOwnedFollowingTransaction>
                    <value>169</value>
                    <footnoteId id="F5"/>
                </sharesOwnedFollowingTransaction>
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                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
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        </derivativeTransaction>
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    <footnotes>
        <footnote id="F1">Each RSU represents a contingent right to receive one share of Common Stock.</footnote>
        <footnote id="F2">The dividend equivalent units accrued with respect to outstanding awards of restricted stock units (RSUs) and vest at the same time(s) as the underlying RSUs. Each dividend equivalent unit represents a contingent right to receive one share of Common Stock.</footnote>
        <footnote id="F3">Disposition of Class A Common Stock to the Issuer to cover tax withholding obligations arising from the vesting of RSUs and DEUs.</footnote>
        <footnote id="F4">491 RSUs were granted on June 29, 2020. 122 RSUs vested on June 29, 2021, and 123 RSUs vested on each of June 29, 2022 and June 29, 2023. 123 RSUs vest on June 29, 2024, provided that the Reporting Person remains continuously employed by the Issuer through the applicable vesting date. RSUs accrue quarterly dividend equivalent units (DEUs) in the form of additional RSUs which vest at the same time(s) as the underlying RSUs. The vested shares will be delivered to the Reporting Person upon vesting.</footnote>
        <footnote id="F5">Includes 25.365 dividend equivalent units accrued on November 29, 2022, 26.571 dividend equivalent units accrued on January 24, 2023 and 24.158 dividend equivalent units accrued on April 25, 2023 with respect to outstanding awards of restricted stock units (RSUs). Such dividend equivalent units vest at the same time(s) as the underlying RSUs. Each dividend equivalent unit represents a contingent right to receive one share of Common Stock.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Neal Dongre</signatureName>
        <signatureDate>2023-06-30</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
