The concrete screw BTS ST 10-90/5 is optimally suitable for a wide variety of heavy-duty applications in cracked and non-cracked concrete according to the ETA-assessment Option 1. It achieves the highest loads combined with easy mounting (use of an impact wrench is recommended), obtains fire resistance class R 120 for even more safety in case of fire, is approved for use under seismic action (C1, valid for setting depth of 55 mm and C2, valid for setting depth of 85 mm) and may even be used to fix fire extinguishing pipe systems to concrete ceilings according to VdS guidelines. Because of the three setting depths and the adjustability, the screw can be used in multiple applications. The concrete screw is an expansion-force free anchor and is also ideal for temporary fixings as it can be removed completely. The zinc-plated countersunk screw has a TX drive for fast mounting.

Reference:
91090BTSST
Coating: Galvanised
Recess type: TX50
Material: Steel
Head type: Countersunk head
Drill hole diameter [mm] d0: 10
Drill hole depth [mm] h1: 65/85/95
Anchorage depth [mm] hnom: 55/75/85
Screw diameter [mm] ds: 12.6
Thickness of fixture [mm] tfix: 35/15/5
Head diameter [mm] D: 21.5
Screw length [mm] Ls: 90
Packaging units: 40