I believe the desire to protect the threads is so the ball can be removed later, otherwise, wouldn't matter if they rust up.

If you use threadlocker, might need a 6ft breaker to get it loose again, and can snap the shaft.

At 450lb-ft, no 2" ball is going to come loose with anti-sieze on the threads.

 

Blue threadlocker isn't that strong - but it protects the threads & holds the torque without allowing corrosion or collecting dust like common AS does.

 

450ft/lbs? I don't own anything that could touch that. This is why I purchased a pre-assembled ball / shank combo.

I throw some grease on the ball from time to time, helps the trailer come on and off.

Wouldn't bother /w the threads on the ball. At 450ft/lbs its going to be far easier to just buy a second set if you need two different sized *****. Forget assembling / disassembling that regularly.

 

Buy this and never have to worry about taking a ball off again. Ive got this on a SS drawbar that Ive had for 20 years, works great and still looks good after two decades.

https://www.etrailer.com/Trailer-Hit...MaAv4BEALw_wcB

 

I was going to recommend a B&W Tow and Stow - they are awesome hitches, pricey, but really can you put a price on not banging your shin on a hitch? No. You Can't.

 

Blue threadlocker is plenty strong when using on a 3/4" high thread count shank, will require a good bit of effort to remove the nut once loose. MFG recommends to reduce torque by 20% to use.

Dust? What is this worry about dust when using anti-sieze? I've never had issues with dust or anything else using anti-sieze.

 

You can put a price on not banging your shin. Looks to be about $200. Do the reverse sensors still blare at you when it's stowed?