1999年4月14日 · With Spiralock thread form nuts we were able to eliminate fatigue and loss of integrity in several high speed applications and also were able to reuse the nuts. You can find a ream of information on testing the Spiralock thread form in the NASA archives. I also received copies of some the work from Spiralock. At one time NASA allowed the reuse ...

2020年4月29日 · The thread form in the aluminium would be ground away when the torque is applied to the joint? Shouldn't a steel insert be used with the spiralock thread? Also, why use Spiralock over a standard locking wire thread insert? Doesn't the spiralock only work once the correct (higher) torque is applied to the joint?

2006年8月19日 · We used to use Spiralock extensively here but ran into problems like availibility and price (as mentioned already). Our biggest problem: tap quality. We use a lot of high strength materials and our machine shops were complaining of constantly breaking Spiralock taps. Of course, if you're using softer materials, this is no issue.

2007年10月10日 · Granted, the OP isn't real clear. However, I think it sounds like he's needing to tap holes with a Spiralock threadform tap. If they are through holes, the tap must be started from the correct side. Tom, I think anyone who understands the Spiralock concept would understand why the holes have to be tapped from a certain side.

2012年7月24日 · If backward compatibility isn't a problem you might want to look at the Spiralock Thread Form. This is the only thread form that NASA would allow to be reused on the Shuttle. I've used it on several demanding make and break situations. I would give them a call.

2007年12月21日 · We were very careful with the use of plastic insert lock nuts and had a cut off point of .75". We also stayed away from deformed type lock nuts with safety wired fastener being the norm. We used chemical thread locking products on thousands of small fasteners again with around 1" being the nominal cutoff.

2005年4月11日 · The best solution is to develop sufficient preload to avoid loosening. The best "additional" step is to use thread adhesive. Safety wire does not prevent loosening - it only prevents complete fastener loss and joint separation. Likewise, cotter pins on automobile drive shafts or tapered ball studs do not prevent loosening.

2005年4月22日 · The best solution is to develop sufficient preload to avoid loosening. The best "additional" step is to use thread adhesive. Safety wire does not prevent loosening - it only prevents complete fastener loss and joint separation. Likewise, cotter pins on automobile drive shafts or tapered ball studs do not prevent loosening.

2001年3月15日 · Thread starter deadeye; Start date Jun 25, 2013; Status Not open for further replies. Jun 25, 2013 #1

2005年1月31日 · I am having a lot of problems when making cumulative dimensions in V5. The supplier that I am working with will not accept the circle x default for the cumulative dimensions. They want to use regular dots with the zero appearing next to the dot. I have tried many things in order to make...