Screw - University of Utah

Tap Chart: 6-32 Refers to a #6 screw with 32 threads per inch. Choose the size screw and threads per inch, then look up the drill size on the chart. Demonstrate tapping. Drill Bit Size Chart: Drill bit sizes come in numbered series (1-80), lettered series (A-Z) and fractional series (1/64- ), all of which overlap each other. Choosing a drill ... ................
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