I make my own at lowes! I just get whatever phillips head screw that will fit, and shave some thread off around the top with my dremel cutting bit. That way the
pickup height is perfectly adjustable. I install these with the springs of course. Thats worked well for me for many years, although it may be better to use woodscrews with a different bit of thread. I have to predrill my holes a bit to get my screws in there. Ive actually sharpened teh tips before too.