Flat-top half-round head screw with collar,

M8x16, with internal hexagon (TX 45)
Product No.: 900011100

Screw with a flattened semi-round head and collar with internal hex drive, DIN 34805-2.
TX drive.
Steel FK010.9, galvanised – blue passivated
Increased assembly productivity

In fasteners with a hexagon socket drive (TX), the force is transmitted over a large area via the flanks of the drive rather than at a single point, as is the case with hexagon socket drives, for example, and offers the following advantages:

Optimised tool wear
No slipping of the tool, as the contact force is applied optimally
No damage to the surface coating
Note
Due to the head geometry, these screws have limited load-bearing capacity; see DIN EN ISO 898-1