Re: Where to find Trem post (locking screw) mod kit ?
Before you bought the lock post, try this option 1st.
Ok before lubing up, take off the whole damn tremolo and the screw stud, get hold of a sealing tape, dirt cheap, normally it is use for piping installation to prevent from leaking.
Wrap up a few rounds or to desired amount clockwise on the screw stud, Screw it back to the stud mounting nut on the guitar. Make sure the stud is tight. Shake it left and right to ensure it sits tightly.
Lube up the stud groove and your trem knife edge.
Next mount your tremolo with the springs and restrung the guitar, adjust slowly both the studs height to your liking.
1 disadvantages is that do not turn it anticlockwise to loosen it up, you will have to reseal the stud back with the sealing tape, so make sure you get the correct height the 1st time without unscrewing back the stud.
Try this option, super cheap and stays intune.