VGBUY440pcs M3 Screw Assortment Kit,M3 x 30/35/40/45/50mm Hex Button Head Cap Screws Bolts Nuts Washer Kit,304 Stainless Steel Machine Screws Suitable for 3D Printer DIY（Silver）

Many cases, tool boxes, etc., in the 3D printing world use M3 screws. This kit contains a good variety of the longer, 25-45mm, screws, washers and nuts. My only wish would be that it included shorter sizes as well.

nice kit to have around, quality seems good enough

You never know when you will need a small bolt, nut, or washer, and with this kit, you will have them. When I see these on sale, I always grab them because you just never know. So far I have not found any flaws in the hardware but that foam they put in here is no match for the small washers that are all packed into one bin. That's right, flat and lock in one bin and if your eyesight is going like mine, best of luck getting the one you want the first time. And they will go visit their neighbor. All in all though, great little bit of kit.

this is a really nice set of M3 sized screws, nuts and washers. they are all button head, vs flat top. Generally this is fine, but make sure you get the right set.I've been able to put some decent torque on these, and not had any rounding of the screws themselves. So it seems they are well made

It’s a very nice set of M3 screws, not a lot of each size but a good range. As usually there are tons of nuts and washers. They’re well made and not greasy. I’m just assembling 3d printed bits and pieces of things, so I don’t need anything fancy.The case they came in is very flat, it’s a bit odd. They included a piece of foam to keep things from wandering around during shipping, which is a great touch.Disappointingly, the flat washers and lock washers are just tossed in the same compartment together, so there’s some rooting around required to get what you’re looking for. But whatever. Overall a pretty nice set!