Rim Lock & Cast Iron CoverRim locks are fitted to the surface of the door rather than being morticed in, along with a surface mounted keep that should be fitted to the door frame. Contains a 1 lever rim lock which is not insurance rated, use in conjunction with a british standard deadlock to comply with insurance regulations. Product is reversible so can be used on either the left or right hand side of your door. All our rim locks are KA. Supplied with matching SS wood screws.