T-nut slot 8 trapezoidal, with guide swiveled, with spring T-nut slot 8 trapezoidal, with guide swiveled, with spring

T-nut slot 8 for subsequent installation into the profile, fixation of the position by spring even for vertical mounting

T-nut slot 10 trapezoidal, pivoted with spring T-nut slot 10 trapezoidal, pivoted with spring

For subsequent pivoting into the profile position, held in position by a spring