The effect of weld nut projection welding means is a combination of a surface of the weldment is processed in advance of one or more projections point to the welding surface of another want to touch \ pressurizing and heating, projection point pressure feed After making these points of contact resistance welding solder method. The main performance: Welding concentricity (visual), weld strength (see test methods), thread destructive M6X1.0 (10 * 6.5) is a non-standard hexagonal weld nut, its role is soldered with the fastening.