Hidden Fix: Supplied with metal brackets, screws to fix the bracket to the threshold and nails to fix the bracket to the floor. The bracket is fixed by a small screw flush into a recess pre-cut into the underside of the threshold. The bracket can then be nailed to the floor surface and the floor covering laid over to hide the metal bracket.
Bond Fix: Supplied completely plain with no holes or fixing brackets so that a bonding agent (No More Nails etc.) can be used to "glue" the threshold to the floor surface.
Screw Fix: Supplied pre-drilled with countersunk holes at equal intervals along the length of the threshold.