assembly: the entire loading capacity of the T-nut can only be applied if the screwing is guaranteed to be made over the total thread length of the T-nut;
x in the table represents the nominal slot size;
x1 in the table indicates which T-slots (DIN 650) the nuts are suitable for;
a in the table indicates for which clamping system the nuts are suitable for;
F1 (kN) in the table represents the minimum test force according to DIN 508 F;
