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 * Mackey Tara D   2. Issuer Name and Ticker or Trading Symbol AZZ INC [AZZ] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Chief Legal Officer (Last) (First) (Middle) ONE MUSEUM PLACE, 3100 WEST 7TH STREET 3. Date of Earliest Transaction (Month/Day/Year) 04/27/2018 (Street) FORT WORTH, TX 76107 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 COMMON STOCK 04/27/2018   M   379 A $ 0 4,928 D   COMMON STOCK 04/27/2018   M   333 A $ 0 5,261 D   COMMON STOCK 04/27/2018   M   406 A $ 0 5,667 D   COMMON STOCK 04/27/2018   M   415 A $ 0 6,082 D   COMMON STOCK 04/27/2018   M   333 A $ 0 6,415 D   COMMON STOCK 04/27/2018   M   12 (1) A $ 0 6,427 D   COMMON STOCK 04/27/2018   M   9 (2) A $ 0 6,436 D   COMMON STOCK 04/27/2018   M   8 (3) A $ 0 6,444 D   COMMON STOCK 04/27/2018   M   9 (4) A $ 0 6,453 D   COMMON STOCK 04/27/2018   M   4 (5) A $ 0 6,457 D   COMMON STOCK 04/27/2018   F   465 (6) D $ 45.75 5,992 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 Units	(7)	04/27/2018		M			379	(8)	(9)	COMMON STOCK	379	$ 0	0	D
Restricted Stock Units	(7)	04/27/2018		M			333	(10)	(9)	COMMON STOCK $1.00 PAR VALUE	333	$ 0	0	D
Restricted Stock Units	(7)	04/27/2018		M			333	(11)	(9)	COMMON STOCK	333	$ 0	0	D
Restricted Stock Units	(7)	04/27/2018		M			406	(10)	(9)	COMMON STOCK	406	$ 0	406	D
Restricted Stock Units	(7)	04/27/2018		M			415	(12)	(9)	COMMON STOCK	415	$ 0	830	D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Mackey Tara D ONE MUSEUM PLACE 3100 WEST 7TH STREET FORT WORTH, TX 76107			Chief Legal Officer

Signatures

Tara D Mackey		05/01/2018
**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)	Represents the vesting of dividend equivalent rights accrued on 379 restricted stock units ("RSUs") granted on 4/27/2015, which AZZ has elected to pay in shares of AZZ common stock. These dividend equivalent rights vest when, and if, the underlying RSUs vest.
(2)	Represents the vesting of dividend equivalent rights accrued on 333 RSUs granted on 11/6/2015, which AZZ has elected to pay in shares of AZZ common stock. These dividend equivalent rights vest when, and if, the underlying RSUs vest.
(3)	Represents the vesting of dividend equivalent rights accrued on 333 RSUs granted on 3/7/2016, which AZZ has elected to pay in shares of AZZ common stock. These dividend equivalent rights vest when, and if, the underlying RSUs vest.
(4)	Represents the vesting of dividend equivalent rights accrued on 406 RSUs granted on 4/27/2016, which AZZ has elected to pay in shares of AZZ common stock. These dividend equivalent rights vest when, and if, the underlying RSUs vest.
(5)	Represents the vesting of dividend equivalent rights accrued on 415 RSUs granted on 4/27/2017, which AZZ has elected to pay in shares of AZZ common stock. These dividend equivalent rights vest when, and if, the underlying RSUs vest.
(6)	The reporting person disposed of 465 shares of common stock to satisfy tax withholding obligations.
(7)	Each RSU represents a contingent right to receive one share of AZZ common stock.
(8)	The RSUs granted on 4/27/2015, vest ratably over a 3-year period beginning on 4/27/2016.
(9)	Once vested, the shares of common stock are not subject to expiration.
(10)	The RSUs granted on 4/27/2016, vest ratably over a 3-year period beginning on 4/27/2017.
(11)	The RSUs granted on 11/6/2015, vest over a 3-year period with 1/3rd vesting on 4/27/2016, 4/27/2017 and 4/27/2018.
(12)	The RSUs granted on 4/27/2017, vest ratably over a 3-year period beginning on 4/27/2018.

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.