HARDELL Rivet Nut，Rivet Nuts Assortment Kit 330 Pcs - Carbon Steel Rivnut Set Flat Head Nutsert with Durable Case for Home, Automotive, Marine & Industrial Use. I ordered this item because my husband is always working on one project or another at home and he works in the engineering department of a major convention hotel. So he's always doing something with tools and stuff. I didn't know how he could use them, but haven't heard anyone ever say they have enough or too many tools, etc. He took them to work. Hasn't gotten to use them yet, but they do seem to be well made and I know that they're going to come in handy one of these days. Always good to have fasteners on hand because you never know what might break at a moments notice. They will definitely get used.

Very nice selection...usually I doing a small project or small repairs...this set is perfect to have around and I don't have to have 100's of rivnuts laying around. Most importantly they collapsed evenly and the threads were true. I only needed 1/4 and 5/16ths for my latest project, I would expect the other sizes will be of same quality. Good value very useful around the house.

Purchased these rivet nuts to replenish my rivet nut kit. It has the sizes I mostly use and are well made. I use rivet nuts on items when sheet metal becomes wallowed out too much- drill to the next size up and install a rivet nut, problem solved!I recommend these to replenish your stock or if you are just beginning/wanting to try rivet nuts out; just need to get a rivet nut gun.

Performed perfectly, even on a damaged and slightly oversized hole.

This is one of those little kits that doesn’t seem exciting—until you need it. And when you do, you'll be very glad it was sitting on your shelf. Whether you're dealing with stripped sheet metal threads, adding a new bracket somewhere odd, or just trying to make a solid repair without resorting to duct tape (again), this HARDELL rivet nut set is a genuinely useful piece of hardware to have on hand.Everything comes neatly packaged in a sturdy plastic case, with compartments that—miracle of miracles—actually keep the sizes separate. The threads are true, the construction solid, and the range of SAE sizes covers just about any project a DIYer, car tinkerer, or occasional furniture fixer might face. It's not glamorous, but it works exactly as it should—and that’s high praise in my book.My Rubric✅ Good = Qualifies as a selling point➖ So-So = Not great, but also nothing resembling a showstopper❌ Not Good = Could be a showstopperMy star ratings, which tend to skew upward due to limitations in the 5-star system, are further elaborated in a decimalized scoring at the end of the review.Finally, although some items have been freely offered via the Vine system, I refuse to sell out and will never allow a vendor to influence my scoring through any means other than the quality of the product, both on its own and in relation to the current pricing at the time of my review. I value the efforts of other honest reviewers and wish nothing more than to pay their efforts forward in hopes of faithfully guiding others to informed decisions.The Good✅ Covers the key SAE sizes – Six of the most commonly used thread sizes are included, and all came properly labeled and sorted.✅ Decent quantity – 330 pieces is a generous amount, especially for weekend projects or backup stock.✅ Solid carbon steel build – Threads cleanly, compresses evenly, and holds tight. No shearing, slippage, or awkward crumpling during install.✅ Compatible with all major rivnut tools – I tested it with mine and had no issues.✅ Better-than-usual case – I’ve seen plenty of flimsy organizers in my day, and this one is a cut above. Stays shut, holds parts well, and helps avoid that classic “surprise mix-up” moment.The So-So➖ More small sizes than large – Fairly standard in these assortments, but worth noting if you use the larger rivnuts more frequently.➖ Latch tabs are basic plastic – They work fine, but I wouldn't subject them to heavy abuse or leave the case bouncing around in a truck bed.The Not-Good❌ None observed – Everything functioned as expected, and there were no defects or missing pieces in my kit. If anything changes with extended use, I’ll update the review.The DetailsThis kit isn’t trying to be fancy, it’s just doing a good job at what it promises—providing strong, consistent rivnuts in useful sizes with a case that makes sense. I tested a few sizes on some sheet metal and MDF scrap to check for thread accuracy and compression, and everything passed with flying colors. The nuts crushed evenly, with no warping, and accepted standard bolts without a hitch.I particularly appreciate that these aren’t limited to one specific brand of tool—you can use your existing rivet nut gun (or even the old bolt-and-nut workaround in a pinch), and they still get the job done. The zinc plating helps ward off rust, which gives me confidence they'll last in storage or in the occasional humid garage.Final Rating: 5/5 (A reliable, well-organized assortment that earns its spot in any serious DIY toolbox)

Great assortment. Easy enough to compress - I broke my rivnut tool so I used the bolt-and-nut method. These are perfect to have around the shop

This is a nice selection of rivnuts. Of course they include more of the smaller sizes as those cost less. The rivnuts work like they should and hold well. No issues pulling them with my rivnut tool. The plastic case works well to keep them separated. I've not had any issues with the case latches but they're just the common plastic tabs which are not very durable.Overall it's a nice set of rivnuts. Not top of the line but good for my diy projects.

Nicer case than typical. The rivnuts themselves are pretty standard. Chromate coated mild steel. They crush pretty evenly. Threads are good. Nothing to complain about here.