1 definition by 1ofmanytoo

Top Definition
UNF
For all of you vulgar people it can also mean the abbreviation for Unified National Fine (as in thread of a mechanical device that has a spiral groove cut in it for holding and fastening things together, most times called a "screw" that has no connotations to vulgarity.
When purchasing screws be sure to specify the thread type UNF as opposed to UNC
by 1ofmanytoo July 11, 2011

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