| 摘要 |
PROBLEM TO BE SOLVED: To provide a resin nut with high accuracy and decrease mam-hours. SOLUTION: A manufacturing method of resin nut 1 comprises the steps of: injecting thermoplastic resin material in melting state into a cavity provided inside thereof with a core pin of which the peripheral surface is threaded, and extracting the core pin with rotating after the resin material is solidified. The core pin has an incomplete thread 1a in at last one of thread groove end portions cut on the peripheral surface.
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