____ screws have a square or hex head and are designed to be turned with a wrench.
A) Common
B) Sheet metal
C) Self-tapping
D) Lag

Question

Quizplus · Accepted Answer

Lag screws have a square or hex head and require a wrench to turn due to their size and strength. Common screws have a flat head and require a screwdriver, sheet metal screws have a sharp point and are designed to penetrate metal without the need for a pilot hole, and self-tapping screws have a threaded shaft that creates its own thread in the material being screwed into.

____ Screws Have a Square or Hex Head and Are