Not Ranked
Good link Richard! I try to 'over bolt'. If I think grade 5 will do, I use 8. If I think grade 8 will do, I use AN/MAS stuff. Like mentioned in the article, there can be reasons why this isn't 100% the best approach. If a bolt is made for a specifc application by some one like ARP, I use it with out question. They certainly know more than I ever even care to.
I am not sure what nut he is talking about when he mentions "mechanical locking toothed nut". I am assuming that is the type of nut where the bottom of the nut is 'knurled' in order to 'bite' into the material that it is being torqued into. A 'flange lock nut'. If that is the case, I would not use them. First a washer should be present. If there is one then it is only biting into the washer. Which does no good. Plus, should it become loose, there is nothing to stop it from falling off. Now if he is refering to the flexloc type, a type of 'prevailing torque fastener, they stay put.
Carrol Smith's 'Nut's Bolts, Fasteners and Plumbing' is an excellent book. If you have followed any of my posts you know I am a Carrol Smith fan! Following his advise has yet to lead me astray.
Rick
|