A type of hooked nail made from one piece of iron. It is bent at a right angle and is square in cross section. The name is a corruption of orikugi 折釘. Orekugi are used for both the interior and exterior of a tea ceremony house *chashitsu 茶室. There are many different sizes and most have stops or guards which determine the extent to which the nail can be inserted into a wall, post, or molding. Orekugi are named according to their placement, or purpose. There are many types of bent nails. These include; *fukurokakekugi 袋掛釘, *musōkugi 無双釘, *asagaokugi 朝顔釘, *hanakugi 花釘 (tokobashira hanakugi 床柱花釘), tokonakakugi 床中釘, tokokake nakakugi 床掛中釘, and tokootoshi kakekugi 床落掛釘.
a) *asagaokugi 朝顔釘 b) *nijū orekugi 二重折釘
c) tokootoshi kakekugi 床落掛釘 d) *musōkugi 無双釘