| 摘要 |
PROBLEM TO BE SOLVED: To provide a threaded bolt capable of being inexpensively manufactured, and driven into a processing material by a hand-held driving device without problems similarly as an existing threaded bolt.SOLUTION: A threaded bolt includes a fixing portion 13, a load engagement portion 12 having a thread 15, and a head 11. The load engagement portion 12 is provided with a pin-shaped core region 17, the core region 17 is formed integrally with the fixing portion 13 and the head 11, the core region 17, the fixing portion 13 and the head 11 are made of metal, and a threaded sleeve 16 made of a synthetic resin material and provided with the thread 15, is fixed to a radial outer side of the core region 17. Preferably, the threaded sleeve 16 is formed on the core region 17 by injection molding, and the core region 17 is provided with fixing means 19 for fixing the threaded sleeve 16 in a state of not being rotatable. More preferably, the threaded sleeve 16 is made of a glass fiber-reinforced synthetic resin, and the core region, the fixing portion and the head are made of stainless steel. |
