PURPOSE: To facilitate execution of works, to easily replace a fixture member even after th execution of works, and to facilitate reform.

CONSTITUTION: A metal fitting 10 having latch parts 13, 14 installed at the lower and upper sides at a space from the wall surface 11 where to mount is fitted to the wall surface 11 by a nail or a screw 16. With a fixture member 17 having upper and lower install grooves 18, 19 where the above upper and lower latch parts 13, 14 are fitted and an escape space part 22 abuttedly brought into contact with the fitting 10, the upper and lower install groove 18, 19 are dropped in the upper and lower latch parts 13, 14.