An adhesive is filled in an adhesive-containing member, while positively fixing the adhesive-containing member, and after the filling of the adhesive, a nozzle can be positively capped on the adhesive-containing member at high speed. The adhesive-containing member 2 has a hollow cylindrical body 3 with a non-cylindrical bottom portion 7. A nozzle 8 includes a polygonal tubular portion 11 of square shape or regular polygonal shape in plan view, formed on an upper end of cylindrical proximal end portion 9. A cylindrical portion 12 thereof is formed integrally on the polygonal tubular portion 11 via a step portion, and a conical discharge portion 13 is formed integrally on the cylindrical portion 12. A recess 14 is formed in a central portion of an outer surface of a closed top of the discharge portion. Nozzles 8 are lined up in a predetermined direction, using the cylindrical portions 12, and then each nozzle is engaged with and retained by a nozzle tightening jig 21 having an inner peripheral surface substantially corresponding in shape to that of the polygonal tubular portion 11, and the nozzle tightening jig 21 is rotated, so that the nozzle 8 is capped at high speed on the adhesive-containing member 2 which is fixed by engaging its bottom portion 7 within a fixing jig 23.