Dadi zigrinati, Viti con testa zigrinata, Pomelli zigrinati, Rotelle zigrinate
Knurled nuts, knurled screws, knurled knobs and knurled wheels have a ribbed edge, allowing them to be tightened, loosened or finely adjusted manually. The norelem range includes a variety of shapes, thread sizes and materials for versatile use in machine, tool and plant construction.
