How do These Nuts Work?

[Vincentc]

And how do you remove them.

No, this is not a political post. Three of the 4 fasteners holding the FB ladder have come loose, but they will not unscrew or screw back. I assume the upper fasterner which looks like a "screw" is in fact a nut, in the fashion of a screw with a hollow threaded end to receive the lower screw.

I intend to take a grinder to the head of the lower screw and see if I can get things loose so I can replace the fasteners.

If anyone is familiar with this fastening system or has a better idea, please let me know.

Thanks

 

[yachtsmanbill]

Those are barrel nuts and will require two screwdrivers to remove. When bubba installed them, he did a lousy job cutting the screws to length, and with a forced bad thread, have galled themselves together. If youre alone, a pair of needle nose vise grips may help, if not, a 1/4 drill bit from the top. Dont try to grind them... theyll get really hot and damage other stuff. ws

Install washers under the heads to help distribut load and bed with 5200

 

[MikeP]

+ What Bill said!

 

[Vincentc]

Thanks

 

[Maynard Rupp]

They call those "sex nuts". No, really. One is a conventional screw and the other has a screw head and a threaded tube. One is male, the other is female....Get it?