100pcs M3 x 12mm 12.9 Grade Alloy Steel Hex Socket Head Cap Screws Bolts,Black Oxide Finish

I use a lot of these length bolts with things from the 3D printer. I like that these are available in bulk in specific sizes so I can stock more of these to match my use. They are decent quality and for the price they are a great choice. I use them to fill a kit and as I am building things. Works well with brass heat set inserts.

Good quality. Replaced a lot of screws on my rc's with these and they held up.

Strong and exactly the size ordered. Work great for 3-D print models with M3 Nuts.

High-quality screws — consistent threading and very strong. Perfect for my builds.

Make sure you give these a nice cleaning because they just come in a plastic bag and thin cardboard box. They are still slathered in oil so have a clean place to wipe them down before using them or you will have oil all over your work area. Other than that, the quality was nice and you can’t beat the price for bulk hardware. Everything threaded well and would buy again for other projects

These are accurately described, fit perfectly, work in any project which call for them (and many 3d printed items do), are inexpensive, and have an attractive and durable finish.

Great for the price.

I have been replacing all of my original rack screws with these. Even though an allan wrench is included, you will be happier if you get a hex-head screwdriver or bit.

Works for intonation screws on double locking tremolo

As described.

these worked well

Good bolts for the price, haven't had any issues with threads or broken bolts

Great fit and size for my 3D printing projects. I highly recommend