Review on 🔩 Honbay 100pcs M3 Square Nuts: Durable 304 Stainless Steel Construction for Incredibly Reliable Fastening by Joseph Whiteman

I bought these for use with Micro Beam extrusions and found that about half the nuts have a flare on the side that encloses the nylon retainer which is larger than a 5.5mm hex head, so I can't mount my socket on it. They work great when approached from the side with an open-end wrench. I would have returned them if I hadn't already poured them into my container with other M3 locknuts (which I've never had a problem with). Otherwise they are "serviceable", just annoying that I can't use my normal tools with them.