What are the five symbols in Sikhi?

Thank you for asking this question.
Most people think they are symbols. It is a common mistake. You are not the only one in this case.
First point, please note: THEY ARE NOT SYMBOLS, they part of the Sikhi dress.
And they are:
KACHH, a specially tailored shorts,
KARHA, a stainless-steel bracelet
KANGHA, a wooden comb to be kept in hair.
KIRPAAN, A sword to be used to protect the honor of the week
KESH, uncut hair.

Hope this helps.