Tabella Gola Uni Iso 4755 «FRESH – 2026»

These dimensions are recommended for general-purpose fasteners unless a specific product standard (e.g., for specialized bolts) mandates different proportions. Fasteners Engineering GOLE DI SCARICO

Whether you’re a machinist or a mechanical designer, understanding this "tabella gola" is critical for ensuring that bolts, screws, and plugs sit flush against their mating surfaces without interference. What is UNI ISO 4755? tabella gola uni iso 4755

⚠️ This report is for informational purposes only. For manufacturing, always refer to the official standard document. ⚠️ This report is for informational purposes only

Una gola di scarico (o "scarico del filetto") è un'incisione anulare praticata alla fine di un tratto filettato, solitamente in corrispondenza di uno spallamento. Senza di essa, i filetti incompleti (filetti di uscita) impedirebbero a una madrevite o a un dado di avvitarsi completamente fino alla superficie d'appoggio. Senza di essa, i filetti incompleti (filetti di

| Thread Diameter (d) | Chamfer Angle ($\alpha$) | Min. Chamfer Flat ($u$) | Notes | | :--- | :--- | :--- | :--- | | | $45^\circ$ | Approx. $0.2 \times \textPitch$ | Usually roughly 1-2 pitches long. | | Short Thread | Varies | Shorter | For specific short screws. | | ** Rolled Threads** | $45^\circ$ | Defined by run-out | Often naturally formed by the rolling process. |