ReliaBot Hammerhead European Aluminum Profile Review

My mediocre rating of these nuts is based on the quality of the M3 T-Nuts that I have received. While about half of them worked perfectly, the other half were unusable straight out of the bag. The main problem with the unused part seemed to be that the threading was incomplete and the M3 screw could not be fully seated. If you have an M3 tap, you can complete your thread with most troublesome T-nuts. In general, the quality is disappointing.