A thread regulating and measuring wheel (M) has a storage body (F) for the thread (Y) wound in turns (W) and at least one stopping device (S) outwardly associated to the storage body (F) that delimits a thread (Y) passage slot (A). A stopping element (P) capable of moving transversely through the passage slot (A) to a stopping position acts as a circumferential stop (B) for the thread (Y). The stopping device (S) has, associated with the stopping element (P), an adjustable thread clamp (K) for the thread (Y) held at the stopping element (P).
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