Hilitchi 460-Piece Alloy Steel Socket Cap Screws Hex Head Bolt Nuts Assortment Kit with Box, M3 M4 M5 Thread Size, Black Oxide Finish

I use this mostly for 3D printing projects and printer modifications. It has a nice size selection and all of the screws and nuts fit and function perfectly.All in all if you need screws this size, it is an excellent set and well worth the price. I'm giving it a full 5 stars.

I was expecting the usual mixed-up mess but was pleasantly surprised. The plastic box secures on 3 sides and has actual hinges (not shown in image). There is a clear plastic overlay and 2 paper cards to hold everything firmly in place for shipping/storage. I didn't count them but I wouldn't be surprised if they threw in a few extra. They are marked 12.9 grade and seem to be of good quality.One of the paper cards shows the layout of the bolts/nuts as arranged in the box. The other card promises a 12 hour respnse if you experience problems including:1. damaged box2. parts mixed3. missing parts4. quality issuesFrankly, the last time I bought socket head cap screws like this (from another seller) it arrived a total mess and I never did sort them out. I recommend purchasing this set - 5 stars.

I purchased this for use with a new Ender 3 3D printer and the selection of screws and nuts has proven very useful. Some of the screws that come with the printer are too short for some of the printed upgrades and this set has a good set of replacement options. Other than that, they suit their purpose. No problems with the threads that I have noticed.

I've purchased several of these "kits" and have always been happy with the screws/nuts/etc. However, that dividers in the container easily pull up during use and that creates a real mess trying to get the lid closed and trying to keep the items separated. Worth the price for sure, but a better storage system would make this a perfect 5 star purchase.

Fits perfectly with other M3/M4/M5 nuts and screws from my other kits. The gasket box is far more durable and the extra clamps stops the lid from flexing which helped it from spilling and/or mixing everywhere. The box became my main reason for choosing this product over others. As noted in other comments, these are grade 10.9 based on top of the screw, the sticker on the inventory sales label stuck on the box says 12.9, but Amazon listing is correct.As a funny side note, product label says not suitable for children under 8 years due to small parts, but inside label says under 5.

This is a good kit of black hex-head bolts and nuts. You get exactly what the description says, although I didn't count them . The only thing I think could be improved is the case. The dividers are removable, and it doesn't take long before someone inadvertently pulls a diver up a tad, and then the screws/bolts to get under the diver, and now it becomes an organizational mess. This is not something I am going to dock a star. You can save yourself some headache by using epoxy to keep the dividers from lifting.

Included organizer works great. Packaged really well. None of the parts got mixed up.

Good variety of each size of bolt and nuts but the plastic box it comes separated in broke and all the bolts are now mixed with each other. So you might need to reorganize them when you receive it but otherwise is good.