I needed a new air box fastening countersunk screw for the gasser so looked on dealer websites and they are £1.20 plus postage each.  Screwfix have stainless steel ones for £2.65 for a bag of 50.  Is there something special about the originals or am I missing something.  I like to give the business to the dealers but this is taking the p a bit.

Yeap,  I have a bag of 49 as well. !!!

 

I think the original ones are made of Extraspecialium.

Buy the bag of 50. Manufacturers fastner prices are too high, Yamaha want £4 for an 8mm x 50mm shouldered bolt I was after.

Colour might be different, but yeah standard nut and bolt work is expensive through dealers (also logical imo).

 

Do keep in mind you use the correct size! Too long bolds will make your mileage of the bike a lot less (because your tank will start leaking!)