haisstronica 260PCS Marine Grade Heat Shrink Ring Connectors-Heat Shrink Wire Connectors Tinned Red Copper #10,1/4",5/16",3/8"(3Colors/4Sizes),16-14 22-16 12-10 Gauge Insulated Ring Crimp Terminals

very nice set , fits all needs

Been buying them for years, and zero issues

I fix appliances and was tired of splicing cheap junk connectors from the hardware stores around me. These are competitively priced but the quality is much better and the shrinkage is perfect! I know these are much more durable and will definitely stock up in the future.

I used these for many splices on a wiring harness for an engine swap. All the splices I did came out good and crimped well with a standard set of wire crimpers using the uninsulated crimp jaws. I also used heat shrink tubing to keep moisture out, prevent any potential shorts, and of course making things look nice. It came out really well, and the price on these was right. I also used a set of haisstronica non-insulated butt connectors and those came out good as well. The only issue I had with this set was the plastic lid was broken on deliver, resulting in many connectors being mixed up and the box being a more delicate thing to handle any time I move it.

This little kit has proven handy many times now. I like the organize it comes with and the connectors seem to be fairly good quality. No complaints. I'd buy them again.

I got tired of trying to find a decent quality 'everyday use' ring connector - there's hundreds of seemingly no-name brands out there, and all of them seem to have high ratings... Not super helpful when the quality varies so widely between sets, so I went ahead and purchased 4 different sets of what I'd figured were 'non-name-brand' ring terminals and tried them out.Turns out, 3 of them were all the exact same connector (down to the hundredth of a millimiter) - only this one was different, and significantly better than others.First pic shows the thickness of the 10-12awg connector from Haisstronica, with the second showing 'the others' - it's close to ~30% thicker, and ~3-4% wider (outer of the ring) with the same size terminal hole. These are *much* better for actually getting the amperage the awg you're using is rated for. Additionally, all the terminals are *actually sorted properly* - all three of the other sets I received were sorted by awg alone, with the ring sizes all being mixed up - makes for much more efficient usage when you've a ton of crimps to make.The heat shrink material isn't exactly 3M quality, but you're not paying 3M prices either, and it more than does the job it was made for - these are the absolute best bang-for-buck option out there imo, very satisfied, and definitely will be buying more of their connectors as I need them in the future.

Very easy to do. Like them for projects

Good quality.