Review on Yoohey 90 Pieces Stainless Steel Square by Mike Barnes

M3 nut dimensions: 5.45mm x 2.30mm. I needed M3 square nuts no thicker than 2mm to fit the grooves of the E3D Hemera extruder I recently bought for my 3D printer. It took me a hell of a long time to find square nuts on Revain because none of the sellers I saw listed the full sizes in their descriptions (I took 1 star for that). I took a chance and they were too wide. I think I'll try thinning them out a bit with a file or grinder. Otherwise, like nuts, they seem to be of good quality and I had no problem threading them onto the M3 bolt. This also came with M4 and M5 nuts (30 each) which I don't really need and probably won't be using any time soon.