PROBLEM TO BE SOLVED: To provide a nut of a reel seat for a fishing rod, which can obtain high decorativeness and can be smoothly rotated, and a reel seat and a fishing rod equipped with the nut. SOLUTION: A nut 12 for screwing with a male screw portion of a reel seat main body to move a moving hood, and an inner circumference of a female screw portion 50 for moving which is screwed with a male screw portion of the reel seat main body. An inner cylinder body 41, 42 having a surface, and an outer cylinder body 40 fixed to the outer side of the inner cylinder body 41, 42, the outer peripheral surface of which serves as at least a part of the outer peripheral surface of the nut 12. 40 has a through hole 73 penetrating in the inner and outer directions, and fixes the outer peripheral surfaces of the inner cylindrical bodies 41 and 42 and the inner peripheral surface of the outer cylindrical body 40 at a position farther from the moving hood than the through hole 73. The fixing portions 64, 72, 82 are provided. [Selection diagram] Fig. 7【課題】高い装飾性が得られると共にスムーズに回転させることができる釣竿用リールシートのナットとそれを備えたリールシート及び釣竿を提供する。【解決手段】リールシート本体の雄ネジ部に螺合し、移動フードを移動させるためのナット１２であって、リールシート本体の雄ネジ部に螺合する移動用の雌ネジ部５０を内周面に有する内筒体４１，４２と、該内筒体４１，４２の外側に固定され、その外周面がナット１２の外周面の少なくとも一部となる外筒体４０とを備え、外筒体４０は、内外方向に貫通した貫通孔７３を有し、該貫通孔７３よりも移動フードから遠い位置に、内筒体４１，４２の外周面と外筒体４０の内周面とを固定する固定部６４，７２，８２を備えている。【選択図】図７
