A word of advice would be to forget about this knife.
I've had enough Tac-Force knives ( my collection was well over 100 cheapo knives like this ) and can tell you they're not really even worth $5 if you're buying it as a knife.
Carry a Tac-Force knife for a month and it's a miracle if the clip is still on it, no screws are missing, the blade is still tight, and it's stays closed.
They'll fall apart, and will start to no longer stay closed unless you've got it too tight to spring open.
You can get some loctite on every screw if you can get them out without striplost them, that is if they're not already stripped.
They just plain such and the odds of getting a good one are about 1 in 250.