Meaning UNF
What does UNF mean? Here you find 4 meanings of the word UNF. You can also add a definition of UNF yourself
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UNFUnified thread standard (fine)
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UNFUnified National Fine (UNF) is a thread form with a 60 degree flank angle rounded roots and flat crests. For a given diameter it has a smaller thread pitch than an equivalent diameter UNC thread.
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UNFUnified National Fine (a thread system for fine threads)
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UNFUnified Fine. American fine thread system with 60° pitch angle. Smaller UNF sizes are numbered, whereas larger sizes are known according to the nominal diameter. E.g., #10UNF32 = 0.19" diameter rod threaded at 32 turns per inch. 1/4UNF28 = 1/4" rod threaded at 28tpi. UPVC:
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