While installing a Curt trailer hitch, I lost one of the provided carriage bolts and what they call a spacer inside a frame tube. After lots of time spent trying to retrieve the bolt, I've decided to just try again with a replacement, but I'm having a heck of a time finding a replacement 'spacer'.
The hardware in question is pictured below:
The spacer is the black trapezoidal shaped piece. It's the thickness of a thick washer; its purpose is to prevent the bolt from rotating by bracing against the inside of the frame tube. Here is a schematic:
Finding a 7/16" carriage bolt was harder than I expected but not really a problem. But I have had a real heck of a time finding a spacer, or anything equivalent.
It seems like it may be called a 'block spacer' or just a rectangular washer, but my local hardware stores have nothing and even googling has been futile. I'm looking for either a source for hardware like this (to fit a 7/16" carriage bolt), or alternately, a different solution for preventing the rotation of a bolt whose head is inaccessible. Thanks!
