<SEC-DOCUMENT>0001003078-25-000113.txt : 20251007
<SEC-HEADER>0001003078-25-000113.hdr.sgml : 20251007
<ACCEPTANCE-DATETIME>20251007121535
ACCESSION NUMBER:		0001003078-25-000113
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20251003
FILED AS OF DATE:		20251007
DATE AS OF CHANGE:		20251007

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			McIsaac Martina
		CENTRAL INDEX KEY:			0001947693
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-14130
		FILM NUMBER:		251378841

	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]
		ORGANIZATION NAME:           	07 Trade & Services
		EIN:				113289165
		STATE OF INCORPORATION:			NY
		FISCAL YEAR END:			0830

	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>
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<TYPE>4
<SEQUENCE>1
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        <issuerName>MSC INDUSTRIAL DIRECT CO INC</issuerName>
        <issuerTradingSymbol>MSM</issuerTradingSymbol>
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            <rptOwnerName>McIsaac Martina</rptOwnerName>
        </reportingOwnerId>
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            <rptOwnerStreet1>C/O MSC INDUSTRIAL DIRECT CO., INC.</rptOwnerStreet1>
            <rptOwnerStreet2>515 BROADHOLLOW ROAD</rptOwnerStreet2>
            <rptOwnerCity>MELVILLE</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>11747</rptOwnerZipCode>
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            <isTenPercentOwner>0</isTenPercentOwner>
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            <officerTitle>President &amp; COO</officerTitle>
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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">4,692 RSUs were granted on October 3, 2022.  1,173 RSUs vested on each of October 3, 2023, October 3, 2024 and October 3, 2025. 1,173 RSUs vest on October 3, 2026, provided that the Reporting Person remains continuously employed by the Issuer through each applicable vesting date. The vested shares will be delivered to the Reporting Person upon vesting.</footnote>
        <footnote id="F5">Includes 134.917 dividend equivalent units accrued on November 27, 2024, 142.722 dividend equivalent units accrued on January 29, 2025, 153.957 dividend equivalent units accrued on April 23, 2025, and 135.450 dividend equivalent units accrued on July 23, 2025, with respect to outstanding award of restricted stock units (RSUs).  Such dividend equivalent units vest at the same time(s) as the underlying RSUs and represent a contingent right to receive one share of Common Stock.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Martina McIsaac</signatureName>
        <signatureDate>2025-10-07</signatureDate>
    </ownerSignature>
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</SEC-DOCUMENT>
