- Kesh: Uncut hair on any part of the body for men and women is considered sacred. Both Sikh men and women must wear a turban to protect and cover the hair and head, which is also a spiritual crown.
- Kanga: Wooden comb for hygiene and maintenance of the Kesh.
- Kara: Iron bracelet, a physical reminder that a Sikh is bound to the Guru.
- Kachera: Specially designed cotton underwear that reflects modesty and high moral character.
- Kirpan: Strapped sword worn to defend one's faith and protect the weak and show bravery.
He also established the Order of the Khalsa (a community of the faithful who wore visible symbols of their faith and trained as warriors). Today the Khalsa comprises all practising Sikhs.
He also declared the Sikh holy book, instead of a person, as his successor and the Sikhs' guide forever. Sikhs give the book the same status and respect as a human Guru.