Concealed fastener systems use self-countersinking screws and special bits that drive the screws to a specific depth.

A cylindrical plug made from the same trim material is then tapped into the hole.

Nails should have a thin shank, a blunt point, and large head. Pneumatic nails, should have a full round head (instead of clipped-head or finish nails). Set the gun pressure so that the nails are driven just below the surface of the board.

Use plastic collated nails: wire collation doesn’t always break off cleanly and any remaining pieces of wire can rust.

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