Symmetry Bolt

[dgowans]

Does anyone have any experience with these (

http://www.botex.us)?

I've seen information on Nordlok, Spiralock, etc. and was just wondering whether anyone has actually used these, or better yet, tested them to see how well they retain bolt tension?

 

[MintJulep]

I bet a monkey with an impact wrench could strip the threads in short order.

 

[dgowans]

Mint,

I don't foresee an application where I would specify these, but the concept seemed good (in theory). My question was borne more out of morbid curiosity than anything else.

 

[TVP]

It is almost mind-boggling how many different gimmicks there are in the broad category of threaded fasteners. Has anyone ever heard of preload?

 

[mullins]

I've seen them and played around with them a little bit, but I could not find anything to actually put them to use. The bolts I had used UNC RH Threads and UNF LH Threads.

I guess I should state, that they made an interesting conversation piece when they were on my desk. That was about it.

Taking the science out of rocket science...One step at a time.