Take off your strap buttons and put the Schaller ones on.

Whoa, that was hard.

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Quote by utsapp89
^I'd let a pro look at it. Once you get into the technicalities of screws...well, it's just a place you don't want to be, friend.
Okay dude im not stupid, Im asking how do you install them because theres no screw hole. I just fasten them with my fingers?
isn't there like instructions?
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If you're referring to fixing them to your strap, you need to undo the nut underneath the knob that's used to release and attach them and sandwich the strap between the plate under the nut and the actual bracket that slides over the buttons. If that makes no sense then my apologies, it's a tricky thing to explain without showing.
How does the guitar look with these strap locks on them? Do they stick out very far or do they look somewhat "stock"?