"For mounting electronic equipment, 482.6-mm (19"") installed components and blanking plates onto mounting profiles, 482.6 mm (19"").
For use with profile plate thicknesses of 0.8 - 2.0 mm.
For tight tolerances, the captive nuts for profile plate thicknesses of 1.2 - 1.5 mm should be used.
Available with or without contact of the fixtures with the 482.6-mm (19"") profile/enclosure.
"