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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

1 Answer

2 votes

Final answer:

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.

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