Question

The type of screw is shaped like a square (see picture). Which type of screw is it?

1) Phillips head
2) Torx
3) Allen
4) Robertson

Answer 1

The type of screw that is shaped like a square is called a Robertson screw. It provides higher torque and prevents slipping during installation.

Step-by-step explanation:

The type of screw that is shaped like a square is called a Robertson screw. It is named after its inventor, P.L. Robertson. The square shape of the screw helps to provide a higher torque and prevents slipping during installation. Robertson screws are commonly used in construction and woodworking projects.