What size screws.

[Rustydiver]

Getting fed up off the rubbish quality screws that come with dji stuff. The hex head seems to round out.
What size screws do I need for the arms on a f550 the ones with a shoulder that go into the top plate 4 on each arm. Where is a good place Oglethorpe them?
Or could it be my hex driver?
Any thanks Simon.

[rotorx]

I have always used this e bay seller;

http://www.ebay.co.uk/itm/M2-5-2-5mm-High-Tensile-10-9-Socket-Button-Head-Screws-Black-Self-Colour-Bolts-/231396707092?var=530656404986&hash=item35e0518b14:m:mqElsHeigQIdBshgD58WFEQ

You can get any size in 2.5 or 3mm diameter/length or even in stainless if you prefer.

Once allen drivers/keys are worn grind the end flat (end on) if you have a grindstone or bin and replace it  as this will cause no end of grief with a worn driver.  some of the copy DJI arms vary and are either of the above sizes.