Document and Entity Information - USD ($)	12 Months Ended
	Jun. 27, 2021	Jul. 30, 2021	Dec. 24, 2020
Cover [Abstract]
Entity Registrant Name	STRATTEC SECURITY CORP
Entity Central Index Key	0000933034
Document Type	10-K
Document Period End Date	Jun. 27, 2021
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	--06-27
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Public Float			$ 187,672,000
Entity Filer Category	Accelerated Filer
Entity Common Stock Shares Outstanding		3,887,345
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
ICFR Auditor Attestation Flag	true
Entity File Number	0-25150
Entity Incorporation, State or Country Code	WI
Entity Tax Identification Number	39-1804239
Entity Address, Address Line One	3333 West Good Hope Road
Entity Address, City or Town	Milwaukee
Entity Address, State or Province	WI
Entity Address, Postal Zip Code	53209
City Area Code	414
Local Phone Number	247-3333
Document Annual Report	true
Document Transition Report	false
Documents Incorporated by Reference	Portions of the Proxy Statement dated September 2, 2021, for the Annual Meeting of Shareholders to be held on October 5, 2021.
Title of 12(b) Security	Common Stock, $.01 par value
Trading Symbol	STRT
Security Exchange Name	NASDAQ