How To: Tapping Screw Threads

Tools

Complete Pro-Grade 115-Piece Titanium Drill Bit Set - Fractional, Numbered, Lettered Bits - Metal Index Case

Tap Magic 20016A 16 Oz For Aluminum

Option 1)
Irwin Hanson 26377 117-Piece Machine Screw / Fractional / Metric Tap, Hex Die and Drill Bit Deluxe Set

Option 2)
Greenfield Industries 4-40 Unc 3fl H2 Plg. Em-ms Straight Flute Taps

Select Capacity 1/4-5/16

Use the tap chart to select the correct drill bit for the hole, or use a SCREW CHEK'R.

In the video a #43 drill bit is used to create the hole necessary to tap 4-40 threads, which most of the electronics standoffs seem to use.