Thanks for all the tips guys. I'm also not too sure as to the strength or effectiveness of attaching the blade to the altoids tin.
#1 Seems like the extra screws and/or metal plate would take up needed room in the PSK
#2 I'm not sure if I would want a hole cut into the tin as it may not be waterproof anymore. Sure you could wrap tape around it, but the "stickiness" of the tape will eventually wear out in the field, meaning it can't be sealed. The tin is pretty water tight when closed unless dropped in a lake or river, so if I'm caught in a rainstorm I'm not sure I'd want to leave it sit outside of my pocket if a hole is in the side of it.
Minor issues yes, but I will have to try using the tin as a saw handle to test it. I was originally thinking more along the lines of making a field expediant wooden handle for the saw blade.
Chris thanks for replying, indeed safety pins are a must in any kit, and once I get mine finished I may post its contents. I was wondering however, what exactly is a "metal match"? Is it just a piece of flint to complement the steel hacksaw blade, whereas 2 pieces make one "metal match"?
Thanks again everyone. I may also check into placing a different type saw blade into the kit, as the hacksaw blade seems too fragile.