Haul-Master Cargo Carrier U-bolt Replacement Cap

These screw-on covers replace the rubber caps provided with the Haul Master 64101 cargo carrier from Harbor Freight.

The original caps are meant to cover the exposed ends of the U-bolts, but they don't stay on very well when a long section of the threads is exposed, as is the case when attached to crossbars that aren't very tall.

Each cover requires one M8 threaded insert. 

You'll need to print 8 copies if replacing all the rubber caps.

They can be screwed on and off by hand or with a 13/16" (or 21mm in a pinch) hex socket.

I printed mine in PETG since they will be used outdoors.

The inserts I used: https://www.amazon.com/dp/B0DWZZTZSK