Placing objects around a ring

Hi, I would like to place several instances of a little object (sort of screw) evenly around a ring, such as the in the below picture. Which tool can I use to evenly position the screws around the ring? (some kind of mirroring based on the ring center). Thx.

Snap cursor middle of the ring, go to Edit mode of your object, select all vertices, set Top View and Spin (Alt+R), set Steps and Angle.

An array and curve modifier would be my call on this.

Add a curve circle to your scene, with same centre as your ring.

Add an array modifier and a curve modifier (using the circle) to your screw. (make sure array is on top)

You could skin this cat with a particle system also.

Thanks guys! got it to spin.