For the attachment of the Black Ice radiators (eg on a housing wall) are required per radiator 4 screws (which are usually already include in the delivery  of Radis). These sheet metal screws cut their own thread, and may later also be easily be screwed back in and out.

Delivery:

4 pieces 3.9 x9, 5mm sheet metal screws (Phillips)

Caution: After Nutztung these screws is no longer a pre-existing thread may use!

Please Note: Excessive tightening of the screws can damage the radiator. Make sure that the screws do not damage the fins of the radiator. Damage due to improper use are not covered by the warranty.