I ordered these to plug a 1/4" hole in my fiberglass tub after I removed a sliding tub door. They were too small. I thought I was sent 3/16" ones. I notified WIDGETCO and told them I was sent the wrong size. They sent me another set of 1/4 " plugs, still too small. I then ordered the 5/16" plugs thinking they would fit. they were too large. Bottom line, their 1/4" hole plugs are not 1/4". I did some research and discovered that other customers have complained about this issue as well So the company is aware of the problem and has not corrected it. Shame on them!
[From WIDGETCO; Please note, our 1/4" plugs were designed for 1/4" holes in wood applications where they work well. In other holes, like metal, we have heard reports they are loose, but in other metal holes they still work. Sorry for the trouble you experienced it is not our intention to mislead.]