M3 M4 M5 M6 T Slot Nuts for 2020 3030 Aluminum Profiles - 6Sizes 150Pcs Kit - Carbon Steel,Hammer Head T-Slot Fasteners

Worked as needed/intended.

It is near impossible to find small packs of “T” nuts - which are used on 3D printers. Only needed a few, but this pack had all 3 common sizes (3,4,&5mm) and was onky slightly more than buying a 5 pack of each size. So I am set if I need to setup another printer.

Love it! You can never have too many little nut and bolts!

Works great

they are fine and come in a small case.

As described, arrived as promised, would reorder

I acquired some 3030 T-Slot aluminum extrusion from a friend who had quite a bit left over from a CNC build project. I'm a woodworker but I've been wanting to try building cabinet frames and other basic structures with this stuff and see how it goes. I think it will work better than wood construction for certain applications like van conversions.These T-Slot nuts are very convenient to have on hand for this experiment. The 30 series come with M4, M5, and M6. They slide easily in the T-Slots and lock down very tight. Extremely versatile. The nuts seem to be well made from high-quality carbon steel. The threads are smooth and accurate. I expect these to last a long time.The organizer case is very nice. The parts stay put and the latch is secure yet easy to open.All in all, this is a nice assortment set of 20 and 30 series T-Slot nuts. Good quality, variety of sizes, convenient organizer, at a reasonable price point.