BlueSpot Multi Riveter 360° Swivel Head (Rivet/Nut/Threaded Rivet Studs). The BlueSpot 360° Swivel Head Multi Riveter (Rivet/Nut/Threaded Rivet Studs) is ideal for professional and DIY use. Suitable for rivet nuts M3-M6, rivets 2.4mm to 4.8mm and stud rivets M4, M5 and M6.