Qualfast: M4 Spot Weld Nut A2 Projection Weld Nuts With Flange Metric A2 Stainless Steel MPN: M4 Spot Weld Nut A2 Attributes: Box Quantity: 250 Flange Dimensions: 17 x 9mm Height: 6mm Material: A2 Stainless Number Of Welding Spots: 2 Surface Treatment: Plain System of Measurement: Metric Thread: Metric Thread Direction: Right Thread Size: M4