Tabella Gola Uni Iso 4755 |work| Link

🔧 Technical Deep Dive: Understanding the UNI ISO 4755 “Gola” (Thread Undercut)

Without an undercut, a small radius or incomplete thread often remains at the base of a shaft, preventing a nut or part from seating perfectly flat. tabella gola uni iso 4755

The standard specifies the form and dimensions of thread undercuts (Italian: gola di scarico ) for fasteners with external metric ISO threads. These undercuts are essential for ensuring a flush fit when a screw or bolt is tightened against a surface, as they provide clearance for the non-threaded transition zone. 🛠️ Purpose of the Undercut 🔧 Technical Deep Dive: Understanding the UNI ISO