Rock concrete screw, countersunk head

Galvanised steel

The practical alternative to traditional plugs
The rock concrete screw is a special screw for anchoring in concrete (C20/25 to C50/60 normal concrete) and is covered by a European Technical Assessment for anchorages in cracked and non-cracked concrete. The rock concrete screw is screwed directly into the drill hole without a plug or other additional components. As it is screwed in, the thread cuts a mating thread into the subsurface. This type of installation is not only very easy, but also impresses with its minimum assembly time and maximum cost savings. The high-strength screw steel, an extremely complex annealing process, and a special thread ensure that the rock concrete screw also works reliably in class C50/60 high-strength concrete.
Advantages and properties 

  • Installation without plugs 
  • High extraction-resistance values 
  • No expansion effect, so smaller edge and centre distances are possible 
  • Broad range of applications thanks to a variety of screw heads and screw diameters 
  • An economical fastener 
    • Time savings during installation 
    • Cost savings in materials 
  • Time-saving and straightforward installation 
    • Setting and installation process performed in a single step 


  • Drill hole produced only by hammer drilling
  • Setting parameters must be adhered to strictly
  • Used only in C20/25 to C50/60 normal concrete

* Screws not regulated by ETA-15/0886

Product table

Art. no. Dimension Drive PU EAN
110348* 7,5 x 40 mm TX 40 100 Pieces 4250207484974
110349 7,5 x 60 mm TX 40 100 Pieces 4250207484981
110350 7,5 x 80 mm TX 40 100 Pieces 4250207484998
110351 7,5 x 100 mm TX 40 100 Pieces 4250207485001
110352 7,5 x 120 mm TX 40 100 Pieces 4250207485018
110353 7,5 x 140 mm TX 40 100 Pieces 4250207485025
110354 7,5 x 160 mm TX 40 100 Pieces 4250207485032