FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL OMB Number: 3235-0287 Expires: January 31, 2005 Estimated average burden hours per response... 0.5

(Print or Type Responses)

1. Name and Address of Reporting Person * Heerdt Kari D   2. Issuer Name and Ticker or Trading Symbol MSC INDUSTRIAL DIRECT CO INC [MSM] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) SVP, Chief People Officer (Last) (First) (Middle) C/O MSC INDUSTRIAL DIRECT CO., INC., 75 MAXESS ROAD 3. Date of Earliest Transaction (Month/Day/Year) 10/20/2017 (Street) MELVILLE, NY US 11747 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Class A Common Stock, $0.001 par value 10/20/2017   F   201 (1) D $ 79.6 5,749 (2) D   Class A Common Stock, $0.001 par value 10/22/2017   F   298 (1) D $ 79.6 5,451 (2) D

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
	Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.		SEC 1474 (9-02)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Restricted Stock Unit

(3)

10/20/2017

A

2,763

(4)

(4)

Class A Common Stock, $0.001 par value

2,763

$ 0

2,763

D

Options (right to buy) (5)

$ 79.6

10/20/2017

A

14,693

(6)

10/19/2024

Class A Common Stock, $0.001 par value

14,693

$ 0

14,693

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Heerdt Kari D C/O MSC INDUSTRIAL DIRECT CO., INC. 75 MAXESS ROAD MELVILLE, NY US 11747			SVP, Chief People Officer

Signatures

/s/ Kari Heerdt		10/24/2017
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Disposition of Class A Common Stock to the Issuer solely to cover tax withholding obligations arising from the vesting of the previous grant of restricted shares.
(2)	Includes shares acquired under the company's Associate Stock Purchase Plan.
(3)	Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock.
(4)	552 of 2,763 RSUs granted on October 20, 2017 will vest on each of October 20, 2018, and October 20, 2019, and 553 RSUs will vest on each of October 20, 2020, October 20, 2021, and October 20, 2022, 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.
(5)	Represents options to purchase the Issuer's Class A Common Stock, $0.001 par value ("Common Stock").
(6)	An option to purchase 14,693 shares of the Issuer's Common Stock was issued to the Reporting Person under the Issuer's 2005 Omnibus Incentive Plan. 3,673 shares of Common Stock become exercisable on each of October 20, 2018, October 20, 2019, and October 20, 2020, and 3,674 shares of Common Stock become exercisable on October 20, 2021.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.