To provide an exclusive support metal fitting which can integrally, simultaneously, stably, and efficiently support a plurality of horizontal branch pipes coupled in parallel to a drainage header.

A pair of erecting bolts 2 are erected at both end parts in the longitudinal direction of a base plate 1 with a length of covering two or three horizontal branch pipes 8. A movable plate 3, which is fixed freely and vertically movably by fastening nuts 21 to the erecting bolts 2 respectively, is arranged. The lower end of a parallel band 4 is fixed to the movable plate 3. A plurality of rows of the parallel bands 4 with the same diameter, which are open in their perpendicular directions, arranged in parallel at prescribed pitches, and respectively freely openable/closable, are provided. Accordingly, the support metal fitting A is formed. The base plate 1 is fixed to a slab under the horizontal branch pipes 8. The movable plate 3 is horizontally supported in the vicinity of the lower ends of the horizontal branch pipes 8. The parallel bands 4 are opened and respectively receives and supports the horizontal branch pipes 8. The easiness of the work and the stability of the support can be secured.