600 Pcs M3 Screws Assortment Kit, M3x 6/8/10/12/16/20/25/30mm M3 Screw Kits 12.9 Alloy Steel Nuts and Bolts Assortment Kit Black Zinc Plated Hex Socket Head Screws Nuts Bolts and Washers Set

This kit has been a great addition to my parts drawer. The assortment of M2 screws, nuts, and washers covers a wide range of common sizes, which makes it really convenient when working on electronics, small repairs, or 3D printing projects. Everything is well organized in the included case, so it’s easy to find the exact size you need without digging through a pile of hardware. The screws appear well made with consistent threads and a durable finish. I’ve used several sizes already and they fit properly without stripping or binding. The hex socket heads are also a nice touch since they’re easier to work with than tiny Phillips screws. For the price and quantity, this kit provides excellent value and saves a lot of time compared to buying individual sizes. If you regularly work with small metric fasteners, this is a very handy assortment to keep on hand.

I bought this 600-piece M3 assortment for my 3D printing projects, and it has been working amazing so far. If you do a lot of functional prints or assembly, you absolutely need a kit like this. The variety of lengths (from 6mm all the way to 30mm) covers almost every scenario, whether I’m attaching a hinge, mounting a fan, or assembling a larger sculpture. The threads are clean, and the hex heads don't strip easily. The storage box is also very organized, making it easy to grab exactly the size I need mid-build. This is a great value and a huge time-saver for any maker.

Very nice set of screws, nuts, washers, case, and tools. The latch on the case has a nice positive feel to it opening and closing. The tweezers and hex wrench come in quite handy having them stay within the case. I will definitely buy this brand again.

These M3 screw kits have been working out great for me in my daily projects. The black galvanizing technology makes sure they look clean and professional, which is always a plus when you're trying to impress clients or colleagues (or just want your work to look neat). I especially love the fact that there are seven different lengths included - it means I don't have to worry about running out of the right size in the middle of a project. The set also comes with plenty of washers and nuts, so you won't run out while working on something important (I hate when that happens). The box itself is really well-organized too, which makes it easy to find what you need quickly. It even has internal and external labels marking the corresponding screw size and quantity - talk about attention to detail! I haven't had any issues with these screws loosening up either, so they seem to be pretty reliable as well. Overall, I'm really happy with this purchase (I got them on sale at a local hardware store for like $15 or something).

Excellent assortment of metric nuts, bolts and washers for hobby and every day use. Good quality and conveniently stored in a well marked divided box. Would recommend!

Decent screws for the price, however they short changed me on several sizes of the screws. The label on the box says 20pcs of 16mm and 20mm screws, but they only included 10 of each. I haven't gone through to count the rest, but it's not a 830pcs set.

Great muxed set of bolts, nuts, washers. I'm using the set for bike related repairs.

This assortment includes a good range of M3 screw lengths, which makes it handy for electronics, 3D printer parts, small enclosures, and general hardware projects. The selection covers common sizes, and having everything in one case saves time versus hunting individual screws. The screws appear well-machined with clean threads, and they threaded smoothly into nuts and tapped holes during use. I didn’t experience stripping or binding when installing by hand. The case keeps sizes separated and clearly labeled, which helps when working quickly. Material feels solid for typical M3 applications. I didn’t perform hardness testing, but for normal workshop and repair use, they’ve held up fine so far. Overall, a useful assortment to keep on hand if you work with small hardware regularly.

Parfait!