Flat Head Wood Screw

A flat head wood screw is a threaded fastener with a flat top that sits flush with the surface of wood. It holds timber parts together and is often used in furniture, joinery and general woodwork.

A flat head wood screw joins pieces of wood or fixes hardware to wood. It is turned with a screwdriver or a bit, and the flat head sits flush with the wood surface. The screw usually needs a pilot hole in hard wood to stop the wood splitting, and it holds by its thread in the wood rather than by a nut.

Wood screws are often made in steel, with some in brass or stainless steel for damp or outdoor work. Steel suits general indoor joinery, while stainless steel is often chosen where corrosion resistance matters.

This is a general guide to checking this kind of part. It says nothing about any supplier's parts.

Ask the Seller for a certificate of conformance if you need proof of the stated standard. On receipt, check the head shape, thread form, point and drive recess. Check that the screws are free from burrs and that the coating, if any, is even.