Spacer for mounting profile plates made of fibre cement, bitumen, metal and plastic

摘要

The spacer (1) has a support surface (2) helically formed for fibrated concrete, bitumen, metal or plastic profile plates (7) of the spacer, where the spacer is positioned by rotation and at a side to the plates, and comprises a profile e.g. interior polygon drive, slot drive and cross recess drive. A projection is positioned at the support surface after assembly of the spacer into a hole of the plates and the spacer. A guide sleeve is used for centering a screw (3), where the spacer is made of metal.