Forgefix Pozi Compatible Screw Cover Caps are specifically designed for use with Pozi Compatible Screws, sizes 6 and 8 gauge or 3.5-4.5mm. The male Pozi insert underneath the cap head fits snugly in to the Pozi head of the screw. APPLICATION:Offers a concealed yet aesthetically pleasing finish where screws would normally be bare to the elements or the eye.Used for many sign and sanitary installations as well as cupboard and carcass assembly.