This is the 3rd truss rod adjustment post I’ve made. It’s going to be very short and sweet. After much sleuthing I think I found the perfect washer. It looks very similar to the spacers used on the Stewart McDonald Truss Rod Rescue Kit. As you may recall I had a very difficult time finding a properly sized washer. The inside and outside diameters have to be exact.
The best solution I could find at the time was a metric lock washer bent flat. You have to stack several washers to get the right height. The footprint against the wood is a bit small in surface area. The stacking isn’t perfectly aligned… You get the idea.
Because I was also looking for some computer case stand-offs I happened upon a whole other category of standoff and spacers. And from an online industrial supplier I found what I believe are perfectly sized spacers. Here are the specs and where I got them.
Round Spacer, Clear Hole, 18-8 Stainless Steel, Screw Size #10, Inside Dia 0.192 In, Outside Dia 3/8 In, Length 3/16 In
Whatever you use as a washer here are two notes of caution:
- You may never be able to get it back out. Make sure whatever you try out either has lots of space or you are willing to commit to it. I inserted two of these perfectly sized spacers and had a super hard time getting the second one out.
- Make sure the material does not compress. I put a very tough nylon spacer in (as seen above). It compressed changing my relief and was a total nightmare to remove.