Push-in nuts for T-slots

cannot be added subsequently to profiles that are closed at the end.

The nuts for T-slots must be pushed in from the end of the groove.

Swing-in nuts for T-slots

can be inserted in the groove anywhere required. This is optimal for assemblies on existing constructions. Rhombus and T-head nuts have this property. This also applies to T-head bolts. Insertion aids are useful for this type of nuts for T-slots, e.g. slot in the slot nut, thread with pitch error, marking or plastic follower in the thread. 

Screw-in nuts for T-slots

can be inserted in the groove anywhere required. This is optimal for assemblies on existing constructions. Rhombus and T-head nuts have this property. This also applies to T-head bolts. Insertion aids are useful for this type of nuts for T-slots, e.g. slot in the slot nut, thread with pitch error, marking or plastic follower in the thread. 

Nuts without flange for T-slots

generally result in greater positioning tolerance for the thread hole. This depends on the difference between the dimension b of the width of the slot nut and dimension B of the slot base width of the mounting rail.

This symbol indicates the slot base width B in the mounting rail (C-rail).

Nuts with flange for T-slots

The flange width (dimension a) of this nut for T-slots is chosen so that sufficient clearance remains between the slot nut and the groove, dimension A. Dimension a is chosen so that a sufficiently precise positioning tolerance results for the thread hole.

This symbol indicates the groove width A.