About this 3D model

UPDATED-First file was a very tight fit for nuts,this works alot better while still being a snug fit. 6mm Wing Nut made up of printed parts and two M6 nuts.I use it for my Drum-Kit symbols. I printed on a Reprap Prusa i2 using PLA .3mm Layer height,60% infill. Print part out,insert M6 Nut into space,glue in place.