DYWISHKEY310 Pieces M2 x 4mm/6mm/8mm/10mm/12mm/16mm/20mm, Stainless Steel 304 Hex Button Head Cap Screws Nuts Kit with Hex Wrench

These M2 screws work for the most part for my purposes, which is to hold together my FC/ESC stack on my micro size/whoop quadcopters. A few gripes though:1) the hex socket on these are the uncommon 1.3mm size and NOT the more common 1.5mm size of which I have a good driver for (I had to special order a 1.3mm driver after the fact)2) already a few of these had the hex socket strip on me; luckily, I was able to still unscrew them with some pliers, but very irritating nonetheless and makes we wonder when the next one will strip..

I lost the Hex screws to mount the fans on my hotend to my creality Ender 5 so I figure I could buy replacement screws. The details shows the size I needed but what I was was much smaller than I anticipated I was getting. Even though they are smaller than I need I cannot complain about the quality..... I'm sure I can put them to use eventually. The problem I've actually had was the delivery situation. The driver left the package at my neighbor's and pretty much didn't pay attention to the apartment numbers. Luckilyy neighbor informing me she found them at her doorstep when I wasn't home.

The product was exactly what I had in mind: a quality small fastener with enough variety in lengths to provide a hardware store type selection at the shop. The case that was provided was FAR short of the quality shown in the fasteners, the main culprit being the clasp and latching portion. It actually made you spill the contents once you finally got it to release, due to the huge hand-force needed. The shrink-wrap over the case was another challenge, you basically have to use a sharp knife or scissors to get into the package. This also is hazardous due to the overall flimsiness of the case material. Bottom line: GREAT fasteners, HORRIBLE container.

A nice assortment of lengths to chose from. They are the perfect diameter for micro, small to medium size servos. I have used them to mount servos and other components to aluminum frame and also to assemble a robot frame and can think of a number of other uses.Update: I have not had any strip on me.One thing I cant figure out is why there are 210 bolts (they also call them screws) and only 100 nuts. It seems to be there should be 210 nuts so you have a nut for each bolt. Also, it would be great if there were washers and lock washers included.The included hex wrench is a plus. The image shows a few of them used in a project.

I took a gamble on these as I needed something quickly. I typically buy from McMaster Carr. Now I remember why I buy from McMaster Carr - their products don't strip out!!!These are awful. 90% of them stripped. I tried the provided Allen (which stinks), and two other quality brands of drivers that I had. They all strip under minimal torque.I am barely making it through my project and just got fed up. I am ordering from guess who, McMaster Carr.Stay away from these!