Radical 6 or radical hook (亅部) meaning "hook" is one of 6 of the 214 Kangxi radicals that are composed of only one stroke.

In the Kangxi Dictionary, there are 19 characters (out of 49,030) to be found under this radical.

In Simplified Chinese, this radical is merged to Radical 2 丨. In the Table of Indexing Chinese Character Components, 亅 is listed as an associated indexing component of 丨. However, it is often omitted in mainstream dictionaries, including Xiandai Hanyu Cidian.

• Small seal script character

• Fazzioli, Edoardo (1987). Chinese calligraphy : from pictograph to ideogram : the history of 214 essential Chinese/Japanese characters. calligraphy by Rebecca Hon Ko. New York: Abbeville Press. ISBN 0-89659-774-1.
• Leyi, Li (1993). Tracing the Roots of Chinese Characters: 500 Cases. Beijing. ISBN 978-7-5619-0204-2.{{cite book}}: CS1 maint: location missing publisher (link)

Wikimedia Commons has media related to Radical 006.

• Unihan Database - U+4E85