Rivets Nuts Insert Flat Head Threaded for Hand Riveter Gun Tools (M3) .
M3 Rivets Nuts Insert Flat Head Threaded Nut for Hand Riveter Riveting Nut Gun Tools Accessories. 1 X Rivets Nut. Available sizes: M3, M4, M5, M6, M8, M10. Save money and replace nut rivet mandrel instead of buying a new riveting machine.