The Ter Laare BX FAST ETA 1 concrete screw is an anchor made of carbon steel. The anchor is made in sizes 6 (7.5), 8 (10.5), 10 (12.5) and 14 (16.5), and is screwed into a predrilled cylindrical drill hole. The special thread of the anchor cuts an internal thread into the member while setting. The anchorage is characterised by mechanical interlock in the special thread.

The anchor is intended to be used for anchorages for which requirements for mechanical resistance and stability, safety in case of fire and safety and accessibility in use in the sense of the basic requirements 1, 2 and 4 of Construction Product Regulation n.º 305/2011 shall be fulfilled and failure of anchorages made with these products would compromise the stability of the works, cause risk to human life and/or lead to considerable economic consequences.

The anchor is to be used only for anchorages subject to static or quasi-static loading in reinforced or unreinforced normal weight concrete of strength class C20/25 to C50/60, according to EN 206. It may be anchored in cracked and non-cracked concrete.

The Ter Laare BX FAST ETA 1 concrete screw may only be used in concrete subject to dry internal conditions.

The anchor may be used for anchorages with requirements related to resistance to fire.