PURPOSE: To realize a clamping metal fitting which can be simply detached and repeatedly used.

CONSTITUTION: This clamping metal fitting is constituted of a shaft 5 with external thread formed on the extreme end part, a pair of clamp links 1, 2 having projecting parts, a connecting metal fitting 8 of the clamp links having opening parts, a nut 7 applying external pressure on a pair of the clamp links 1, 2, a square washer 6, and a square nut 9. The projecting parts of a pair of the clamp links are inserted into the opening parts of the connecting metal fitting 8, and a pair of the clamp links are constituted so that the extreme end parts are opened or closed while setting the projecting parts as supporting points by existence of external pressure.