To provide a steering column, of simple constitution with a small number of parts, which is high in precision and is capable of effectively coping with a secondary collision.

A nut 103b is engaged with a bolt 103a of a lower bracket 103 to fix a gear box 101 to the lower bracket 103. Then, as an external force is added, a pin 102b does come off a cutout 104c, but a column 102 is securely fixed by an upper bracket 104.