1407 Pcs Metric Screw Assortment, Nuts and Bolts Assortment Kit M2 M3 M4 M5 Metric Machine Screw Kit, 10.9 Alloy Steel Black Zinc Plated Hex Button Head Screws Nuts Bolts and Washers Set

A stick got wedged into my SRAM derailleur while mountain biking (luckily it was too steep), and completely bent the set screw and snapped my hanger. I couldn't find a good resource to find which exact sized screw I needed, but knew it was within a range of the smaller M* screws. It turned out that I needed an M4 and this kit worked perfectly as a replacement screw... Getting the old one out is a different story.I have also used a few of the screws in various 3D prints and in one or two instances for other bike related stuff, like attaching a water bottle cage.

everything was there except M2 flat washers there were 2 packs of M2 lock washers instead.. so therefore it gets a 3-1/2 stars but since I can't do that rounding up to 4....

Once again, had to order ALL the screws to get the ONE screw I needed because metric small screws are not stocked ANYWHERE near my area. The ONE screw I needed was nicely machined and worked for my purpose. All the other ones are a good weight to keeps lightweight items from blowing around in the wind.

I liked the screw kit, but mine came with 50 pieces of M3*6, did not have pieces of M3*8.

Nice assortment for working on 3d printers, or any electronic project.