This method works best on wooden doors although it can be used on metal and filled doors. The screws supplied with our Your-Door-Knocker.com door knockers are #6 wood screws. They are made of brass and finished to match the door knocker. These screws will not work well or at all on metal or filled doors without a little help.

If using a surface mount on metal or filled doors, plastic anchors available in most hardware stores should be used. A plastic anchor will give the wood screw something to thread into. A wood screw does not have the same threads as a metal screw so it simply will not grip into the metal. The metal used to make the door is probably harder than the brass. The brass screw will in all likelihood break off if you try to force it into a metal door without using an anchor.

Most filled doors have a relatively thin plastic or acrylic skin. While you may be able to get the screw to thread into this material, it will not hold the screw securely. Over time the screws will loose their grip and become loose without an anchor.

Plastic anchors are not supplied with our door knockers. They will need to be purchased if needed. Our surface mount door knockers use #6 size screws. Anchors will need match this size for a proper fit.

The plastic anchor is a very simple device and easy to use. The packaging it came in should tell you the size hole to drill in the door. The plastic anchor is then inserted into the hole and the screw for the door knocker screwed into the anchor. The plastic will accept the treads of the screw. As an added benefit the anchor stretches out on the inside of the door as the screw is passing through it. This makes a solid mounting to the door.

You can find more information on door knocker surface mount on the installation page of our site.