Check the packaging the anchors came in for the correct size drill bit to use.

If there is no recommendation, then select a drill bit with a diameter slight narrower than the diameter of the plastic anchor.

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It's easy to follow even I'm a beginner in this are. Drill the hole in the surface you are installing the fastener into.

Insert the matching anchor screw into the item you are fastening to the surface and start the screw into the fastener using a appropriate screwdriver.

Tighten the screw into the anchor until you feel some resistance and the screw is firmly supporting the item.Do NOT overtighten the screw!

You might actually dislodge the anchor in so doing.

We have a high Efficient machine for assembly the screw and plastic anchors.