The genuine Fischer FBS II US 8x80 30/15 TX concrete screw, part number 536853, is a high-performance anchor crafted from durable zinc-plated steel. Designed for secure fixings in both cracked and non-cracked concrete, this screw features an 8 mm diameter and an 80 mm total length. It offers a maximum usable length of 30 mm for single fixings and 15 mm for multiple fixings, ensuring versatility. The TX40 drive facilitates efficient and reliable installation. This concrete screw is ETA approved and suitable for seismic applications C1/C2, providing robust and dependable performance.