Hex chamfered single face
Flat round head
Cheese
Square
T-head
Triangle
Y-shape
Hex chamfered double faces
Cheese with shoulder
Octagonal
DIN 80705-1990
Thin octagon nuts with coarse pitch and fine pitch thread and with small widths across flats
DIN 80705-2017
Thin octagon nuts with coarse pitch and fine pitch thread and with small widths across flats
CNS 4379-1983
Thin octagon nuts with small widths across flats
