Cross-slotted screws for mounting of fans on radiators. Screws with the special UNC thread, which is from the non-metrical unit system, was specially added for use with radiators from the UK and the USA. The UNC 6-32 is sized between M3 and M4. The flat, larger head gives the screw a larger contact area, which allows covering of larger holes, which often are in many radiator grills. Additionally these screws are not only a constructive element, they also look just great!

Please note: Screwing in the screw too far may result in damage to the radiator, please always check the length of the screw. The screws may not fit in all cases!