The hole drilled in sheet metal for a tapping screw should be the approximate size of the ____.
A) thread diameter
B) thread root diameter
C) shank diameter
D) head diameter

Question

Quizplus · Accepted Answer

The hole drilled for a tapping screw should be approximately the size of the thread root diameter to ensure the screw can properly form threads in the material and achieve a secure fit.

The Hole Drilled in Sheet Metal for a Tapping Screw