This 20-piece set of 1/4-20 UNC threaded inserts is made from 304 stainless steel, offering good corrosion resistance for various applications. They are designed as flat head rivet nuts for creating strong, load-bearing threads in sheet metal, plastic, or composite panels where access is limited to one side. This makes them suitable for automotive repairs, machinery assembly, or DIY projects requiring secure fastening. The condition is new, and free shipping is available. As a buying note, ensure the 1/4-20 UNC thread size matches your project requirements. Check the listing for full details on exact dimensions and installation specifications. 1/4-20Unc Flat Head Nut Rivet Insert Threaded Insert 304 Steel 20Pcs. Condition: New. Listed at 14.71 USD. Descrizione: testa piana le viti a testa cilindrica, 1/4 pollice Femmina diametro filettatura 15mm lunghezza totale.Una volte installato, essi sono fissati in modo permanente al materiale di accoppiamento, consentendo il relativo dado di essere rimosso in servizio senza il rischio che il dispositivo di fissaggio sia dislocata.Pacchetto incluso: 20 x dado a rivetto.