The sacred thread consists of three strands, (all common to Srivaishnavas, Smarthas & other Bachelors) joined by a knot known as Brahmagranthi or the knot of Brahma. The three strands symbolize the Hindu trinity-Shiva, Vishnu, and Brahma.
This single packet contains 5 pieces of Yagnopaveetham.
Iyer Brahmachari: A Brahmachari (unmarried person) should wear only one Yagnopaveetham.