rusty screws

i have just got an end can for my cbr 125 but the screws in the can thats on the bike r rusty to hell and ones already snaped for loosing it , was just wondering shall i snap the rusty screws that attach this can or try and save them ?

 

snap them mate, i did the same job in the summer, hope youve got a good drill and tap!

 

ive got a new can so the old 1 is going straight in the bin so might aswell snap them and get some new screws