FORM 4 ☐ Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). ☐ Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response... 0.5
	Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

1. Name and Address of Reporting Person * Watts Jeffery Michael	2. Issuer Name and Ticker or Trading Symbol FASTENAL CO [ FAST ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director                    _____ 10% Owner __X__ Officer (give title below)    _____ Other (specify below) CHIEF SALES OFFICER
(Last)          (First)          (Middle) 48 LAUREL CR.	3. Date of Earliest Transaction (MM/DD/YYYY) 2/20/2024
(Street) INGERSOLL, A6 N5C-3S4	4. If Amendment, Date Original Filed (MM/DD/YYYY)	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. Trans. Date	2A. Deemed Execution Date, if any	3. Trans. 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	2/20/2024		M		3,452	A	$21	9,392	D
Common Stock	2/20/2024		S		3,452	D	$70.2601	5,940	D
Common Stock	2/20/2024		M		15,968	A	$23.5	21,908	D
Common Stock	2/20/2024		S		15,968	D	$70.2449	5,940	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	4. Trans. 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		7. Title and Amount of Securities Underlying Derivative Security (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
Employee Stock Option (Right to Buy)	$21	2/20/2024		M			3,452	(1)	5/31/2024	Common Stock	3,452	$0	0	D
Employee Stock Option (Right to Buy)	$23.5	2/20/2024		M			15,968	(2)	1/3/2026	Common Stock	15,968	$0	0	D

Explanation of Responses:
(1)	The option will fully vest and become exercisable over a period of eight years, with 50% of the option vesting and becoming exercisable half way through the relevant vesting period, and the remainder vesting and becoming exercisable proportionately each year thereafter.
(2)	The option will fully vest and become exercisable over a period of five years, with 40% vesting and becoming exercisable two years following the grant date with the remainder vesting and becoming exercisable proportionately (20%) each year thereafter.

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Watts Jeffery Michael 48 LAUREL CR. INGERSOLL, A6 N5C-3S4			CHIEF SALES OFFICER

Signatures
/s/ John J. Milek , Attorney-in-Fact		2/22/2024
**Signature of Reporting Person		Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
*	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).
Note:	File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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