Starting from left to right in this photo:
Steel threaded locker, I bought two of these to use for tree work (30 kN)
Fancy AU threaded locker - this one's my wife's key holder she thinks it's pretty so she took it to be her keyring. (25 kN)
Nice forged AU non-locker - This is my keyring, it has no shoulders on the clasp to snag my jeans belt loop when pulling of for use. (23 kN)
I don't intend to climb anything with the second two, I would with the wife's perhaps, but she wouldn't want me to scratch it up.
Aerial