N-M 27 clamps with a bow or hook bolts.
The clamps with hook bolts or an N-M27 type bow are a steel structure part allowing to:
fasten longitudinal steel horseheads of the KS/KO -21, V 21, V 25, V 29, V 32, V 34 and V 36 type mining shaped sections to the mining support, made of double-tee rails or other horseheads approved for strengthening mining supports,
and for fastening other parts to a mining support.