Thanks fellas. Maplin sounds about right. I just need to choose Casing Screws with a small head shape to fit recesses in the casing. I only need less than ten, but I wanted to see them first. Yours Truly: Frank -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.23/740 - Release Date: 30/03/2007 13:15