Where can i get extra screws for my butterfly knife?

I have a metal damascus butterfly knife and one of my screws broke because I tightened it to hard where can i get more screws for it? Please help!|||Take out the screws that are left. Go to your local hardware store, Lowe's, Home Depot, etc. and find some that are the correct size. My choices for screws would be either Stainless Steel, or Brass, depending on the color of the handles.|||ebay