Originally Posted by 2door
I've used them successfully on several builds, especially to mount motorcycle fuel tanks.
I'd think the only real consideration would be size. As you're probably aware the hole needed is bigger than the intended fastener size. I've kept all of my fasteners no bigger than 1/4" which requires a hole about 3/8" for the riv-nut. Naturally a steel rivet is going to be stronger and less prone to thread damage than an aluminum rivet.
Thanks much Tom! I will try steel then as a battery is like 8 pounds that will be hanging off it. After looking on ebay,I believe the correct bolt is a M5 Allen head and I would need to drill a 7mm hole for the Riv nut? I was concerned that a steel riv-nut would be too hard to knurl for me with one of the hand operated squeeze rivnuter. guessing when they are factory installed for bottle cages they use a hydraulic machine of some sort and then welded a bit also.
I will give steel ones a try.
MotorBicycleRacing, Yes for sure that sounds stronger than a couple of Rivnuts for sure and a nice alternative. However my down tube is big and odd shaped
( big flattened oval) on this hard tail mountain bike and I'm guessing that nothing is available.