Many furniture - both IKEA and non-IKEA furniture have a standard predrilled M8 thread. If your furniture has this fitting option, all legs below will work.
The M8 (8mm) bolt is a standard fitting that is compatible with a wide range of furniture types.
1 - Attach the bolt into the leg by hand and apply the plastic washer over the bolt.
2 - Apply the plastic disc over the bolt and mount the leg to the furniture’s pre drilled M8 thread.