Bemaka 500PCS M3 M4 M5 Metric Screw Assortment Kit, 8-20mm Button Head Socket Cap Screws Bolts Nuts Washers Assortment Kit, 304 Stainless Steel Metric Bolts with 3 Hex Wrench

Bought these for mounting radiators in my PC and attaching parts to 3D prints. They work perfectly for both. The finish looks good and matches my other hardware. None of them stripped, which is really all that matters with screws. The hex heads grip well with my drivers, and the threads cut cleanly into plastic without cracking anything. Shipped fast and the price was reasonable. Not much else to say, they're quality screws that do the job. Would buy again.

The selection is good, exactly as listed. The bolts/screws and their nuts thread on smooth & freely but firmly. The black oxide is satin/rough enough to give that resistance you want, but not crusty or binding. The hardware was all lightly oiled to prevent corrosion. Even the sorting box/container is pretty decent too. Sometimes it's the absolute cheapest/flimsiest box, but this one is firm, and snaps shut securely. The common metric M4 are good for a lot of hobby items, 3D printers etc. Everything includes the Allen wrench these days, but it's nice they included the 2.5mm one anyway. I counted the washers, nuts, and split-lock washers and there were 55 of each as promised. A good value for the money. I'll be getting the M3 or M5 pack from this maker/seller when I need some.

Everything I needed, the variety of sizes is good, so far good quality fasteners.

Bear in mind that this is a collection of small nuts and bolts. Handy and good value, but I will need to add another collection of larger nuts/bolts.

Best deal, strong and reliable. Check length. :-)

Great product but be aware that you will need to organize it when you receive it! I have used about 10 pieces so far and those 10 have pretty much paid for the entire assortment compared to the local hardware store and not a 15 mile drive!

Well the screw are great but shipping caused all my screw dividers to pop apart and the entire case of screws mixed

The Bemaka M3 screw kit is a great addition to any toolkit, especially those into 3D printing. With adding hardware to your prints, you can elevate the types of printing you do by incorporating things that need to be assembled, or even hinged for creating boxes, doors, latches, etc. Having this screw kit on hand is convenient, and its low storage footprint ensures it doesn't get in the way. The box, while small, is very sturdy, allowing it to be transported without concern for damage to the storage box itself. The multiple sizes of the screws also allow versatility in what you can put together. I also like having multiple types of hardware color, so having this in stainless steel makes sure I can use the appropriate color hardware for each use case. Would purchase again when I need to replenish.