To provide a fixture obtaining strong fastening force in a fastening operation of various backing plates, pipings, respective saddles and the like, only by being driven into an ALC surface or a plaster board surface with a hammer or the like in electric work, construction work or the like.

There is provided a fixture in which a fixing member obtained by mixing a synthetic adhesive having elasticity and metal powder, or ore powder is applied in a tapered state around a leg part of a nail of a metal wire having a head, and a peripheral surface of the fixing member applied to the leg part has elasticity after drying. Therefore, when the fixture is driven into an ALC by hitting the head with a hammer or the like in a fastening operation of a plate, a saddle of piping mounting or the like, the mixed fixing member is partially peeled to be mixed with a material in the ALC, and a surface of the fixing member of the leg part is partially peeled to form a tapered uneven rough surface of the synthetic adhesive having the metal powder, ore powder and elasticity, thereby providing the fixture obtaining strong friction force in the ALC. The fixture can be applied to a plaster board surface by using a short nail.