AK 7 version D, with 4 holes (special version)
ALKO Kober ball coupling, sheet steel version for trailers up to 750 kg permissible axle load up to 75 kg permissible support load at the coupling point with 4 holes - attention special version
EC approval 00-0232
for square drawtube diameter 50 mm for 4 fastening screws: vertical 90 mm M10 horizontal 85 mm M10 elongated hole +/- 5 mm
with lock holder in the handle with safety indicator of coupling status and wear