PURPOSE: To fix a long-sized screw easily by forming a hole for fixation, in which a bolt with a long-sized screw is passed, to a detent section fixed to a metal material with a female screw for adjustment by welding, etc.

CONSTITUTION: A hole 2b for fixing, in which a bolt 3 with a long-sized screw section 3a is passed through the position of the same axis as a female screw section 1a, is formed to a detent section 2, in which both ends of a pipe are drawn and which is joined and unified with an adjusting metal material 1 with the female screw section 1a by welding, and notches 2c are formed at both ends of the hole 2b and the hole 2b is deformed positively. The hole 2b for fixation is deformed by inserting the adjusting metal material 1 into the bolt 3 and striking the front end section 2a of the detent section 2 while the revolution of the bolt 3 is stopped by biting the hole 2b to the long-sized screw section 3a. Accordingly, the long-sized screw can be fixed easily.