Page 1

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , D.C. 20549 FORM 10 - K ( Mark One ) □ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31 , 2020 Or □ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 000-51372 Omega Flex , Inc. ( Exact name of registrant as specified in its charter ) 23-1948942 ( I.R.S. Employer Identification No. ) 19341 ( Zip Code ) 610-524-7272 Pennsylvania ( State or other jurisdiction of incorporation or organization ) 451 Creamery Way , Exton , PA ( Address of principal executive offices ) Registrant's telephone number , including area code Securities registered pursuant to Section 12 ( b ) of the Act : Title of each class Common Trading Symbol OFLX Securities registered pursuant to section 12 ( g ) of the Act : Not applicable ( Title of class ) Name of each exchange on which registered NASDAQ Global Market Indicate by check mark if the registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . Yes □ No ☑ Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15 ( d ) of the Act . Yes □ No ☑ Indicate by check mark whether the registrant ( 1 ) has filed all reports required to be filed by Section 13 or 15 ( d ) of the Securities Exchange Act of 1934 during the preceding 12 months ( or for such shorter period that the registrant was required to file such reports ) , and ( 2 ) has been subject to such filing requirements for the past 90 days . Yes No □ Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S - T ( §232.405 of this chapter ) during the preceding 12 months ( or for such shorter period that the registrant was required to submit such files ) . Yes □ No □ Indicate by check mark whether the registrant is a large accelerated filer , an accelerated filer , a non - accelerated filer , a smaller reporting company or an emerging growth company . See the definitions of “ large accelerated filer , ” and “ accelerated filer ” , “ smaller reporting company " and " emerging growth company ” in Rule 12b - 2 of the Exchange Act . ( check one ) : Large accelerated filer ☐ Accelerated filer > Non - accelerated filer ☐ Smaller reporting company □ Emerging Growth Company ☐