SparkFun PRT-10453 Screw – Phillips Head (1/4″, 4-40, 10 pack)
There are your standard Philips-head 4-40 screws. They are ¼” long and come in packs of ten. This is the screw size we use in most of the holes for our breakout boards. Check below for other associated hardware.
Liamthe1st –
These are just what I needed for fixing my uno to a board along with a cobbler and Pi they are now in line for pinning up gpio etc