iexcell 480 Pcs M5 x 6/8/10/12/16/20/25/30 Alloy Steel 10.9 Grade Hex Socket Button Head Cap Screws Bolts Nuts Assortment Kit, Black Oxide Finish

The assortment of bolts was exactly what was bought. Met all my needs. Comes in a plastic durable box that kept them separated for easy selection. Would like to see more variety if possible.

I create a lot of droids and cosplay items and more times than not, the specs call for a specific M size.. this kit has been perfect in providing what i need.

Common sizes needed for 3D printers and nice to have for side projects

I would buy this again. The price and quality can't be beat.

These fasteners have worked great for me and the only real issue I’ve found is that running the fasteners in by hand will sometimes leave some black residue on your fingers. This isn’t a big deal as it simply washes right off but will leave shiny spots on the head of the screws after repeated use.

I love these screws. They make things tight.

It comes with a 3 mm Allen wrench and all the various lenghts that are great for all of the small robotics projects

Accuracy on the lengths run short for many. I use the 6 - 12mm with aluminum extrusions for robotics projects. I don't mind a few bad but this felt like more than a few. I'd probably not buy this again. I have bought other iexcell products with no issues so I'm a little disappointed these were below par.