Product Specification...
The Fischer FIF-S insulation anchors are deisgned for fixing insulation back to many substrates such as concrete, block and all other types of masonry. They have a 58mm low profile head, which is specifically made to be rendered over if required, and have very good, reduced thermal transfer ratings. These anchors have a dual expansion pin of steel and plastic and are also ideally suited for very thick insulation up to 350mm thick using only an 8mm drill diameter.