Abstract:
The 'D' is a nut where cross section alongwith
the axisof the tapped hole is in the form
of letter D.
The 'D' nuts are used in some type Of cycles
IL.\:e Sen-Raleigh manufactured by Sen Raleigh
Ltd. Calcutta and not in other types of cycles like
Atlas, Hero, etc. The 'D' nuts are being used
aJongwith the respective bolts to hold the fork
clips and the chain stay clips in rear brake tube
functions in me-determined manner to effect the
braking system effectively.