Driving very large screws is easier if they have single slots.

These are actually large screws that penetrate the joist, but do not pass completely through it.

The shape of the slot usually does not matter, except that driving very large screws by hand is sometimes easier if they have single slots.

There is a large screw on the lower bar to allow for the clamp to be tightened.

I have tried large screws into wall plugs, but they don't hold.

Above the words was a drawing of a large screw.

Other systems used a large Archimedes' screw to draw in waste and mutilate it inside the body.

George got out the screwdriver and drew the six large screws that held the lid down.

The traditional tail vise uses one large screw, either wooden or metal.

A sliding metal plate is secured in place by large locking screws.