Concrete screw BTS ST, countersunk head

High loads combined with an easy application
Product image of concrete screw BTS ST with countersunk head, zinc plated
Product overview

The countersunk BTS ST concrete screw is perfect for demanding applications in cracked and non-cracked concrete according to ETA Option 1. It offers high load-bearing capacity with straightforward installation (impact driver recommended). For added fire protection, it achieves fire resistance class R 120. The BTS ST is approved for seismic conditions under categories C1 and C2, except for the stainless steel version, which is approved for C1. Additionally, it is suitable for securing sprinkler systems to concrete ceilings in accordance with VdS guidelines.

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List of references
Filters
Screw diameter [mm]
10.6
12.6
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Drill hole diameter [mm]
8
10
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Drill hole depth [mm]
55
65
75
85
95
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Anchor length [mm]
80
90
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Thickness of fixture [mm]
5
15
25
35
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Anchorage depth [mm]
45
55
65
75
85
Close
Recess type
TX40
TX50
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Head diameter [mm]
19.5
21.5
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Reference
9880BTSST
91090BTSST
9X880BTSST
9X1090BTSST
Screw diameter [mm]
10.6
12.6
10.6
12.6
Drill hole diameter [mm]
8
10
8
10
Drill hole depth [mm]
55/65/75
65/85/95
55/65/75
65/85/95
Anchor length [mm]
80
90
80
90
Thickness of fixture [mm]
35/25/15
35/15/5
35/25/15
35/15/5
Anchorage depth [mm]
45/55/65
55/75/85
45/55/65
55/75/85
Recess type
TX40
TX50
TX40
TX50
Head diameter [mm]
19.5
21.5
19.5
21.5
Packaging units
50
40
50
40
Packaging type.
Box
Box
Box
Box
Applications
  • Guard rails
  • Profiles
  • Cable trays
  • Attaching steel structures
  • Consoles
  • Shelves
Further specifications

Key features:

  • ETA approved for non-cracked and cracked concrete (option 1)
  • High loads combined with an easy install (impact wrench recommended)
  • Easily adjustable
  • Can be completely removed for temporary fixings
Base materials
eta
Suitable materials with approvals
Concrete
Concrete
How to install
Step 1
Step 2
Step 3
Step 4
Useful tips

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