ZT 0450 Question?

SniperElite · Mar 25, 2015

I really like everything about this knife. I have asked this question in a previous thread that did not get a response. Does anyone know if the pivot of the ZT0450 has any notches on the underside to keep it from loosening over time?

Thank you guys for your time and help!

Davidfs · Mar 25, 2015

I don't understand the question, can you post an example?

NeilB · Mar 25, 2015

No. The industry standard is not to use the "lock washer" approach, which is terribly destructive to the titanium, but rather to use Locktite to secure the threaded parts together.

SniperElite · Mar 25, 2015

Some ZT knives have a six sided head on the non-presentation side of the pivot to keep it from rotating/loosening over time when opening the knife. This knife has a circular head on both sides of the pivot leading me to believe that it will loosen. I was asking if someone owns the knife and has taken it apart to see if the pivot (underside) has some way of keeping it from rotating/loosening.

Colorodo · Mar 25, 2015

I would get hold of ZT and ask them.

poolhustler · Mar 25, 2015

NeilB said:
No. The industry standard is not to use the "lock washer" approach, which is terribly destructive to the titanium, but rather to use Locktite to secure the threaded parts together.

This is correct............

poolhustler · Mar 25, 2015

Colorodo said:
I would get hold of ZT and ask them.

I have never seen them on any knife.

I believe the OP is referring to self locking type hardware like this............

Davidfs · Mar 25, 2015

Oh ok, I understand now, I cannot provide an answer though.

I can say, than on an application where the hardware isn't torqued down tight (such as pivot screws) a thread-locking compound will hold better than lock washers or the self-locking bolt pictured.

SniperElite · Mar 26, 2015

I was thinking the non-presentation side of the pivot would be round on the top side but on the underside have a shape of a six sided (nut) counter sunk into the scales however deep is necessary to keep the pivot from loosening with use/over time.

This has most likely been done before. It could be any shape on the underside of the pivot as long as it is effective, but I believe my suggestion above would be the most logical.

Does anyone own the 0450 that can check for us?

I very much appreciate everyone for the input!

Caleb8717 · Mar 26, 2015

My 0452 isn't like that, it's smooth on the underside. Can't imagine the 0450 would be any different.

SniperElite · Mar 26, 2015

Caleb8717 said:
My 0452 isn't like that, it's smooth on the underside. Can't imagine the 0450 would be any different.

I very much like the big brother as well, really like the CF scale. Thank you very much for the conformation on the pivot of the 0452!
Hopefully someone with the 0450 will chime in. Thanks again!

SniperElite · Mar 30, 2015

Does anyone own one and is willing to check for this? Thank you very much for your time guys!

jprime84 · Mar 30, 2015

SniperElite said:
Does anyone own one and is willing to check for this? Thank you very much for your time guys!

I should be able to confirm tomorrow, but I do have the 0808 on hand whos pivot looks the same as the 0450 - polished round on presentation side. On the 0808 it is the inset hexagon shaped lug as you described.

jprime84 · Mar 30, 2015

SniperElite said:
Does anyone own one and is willing to check for this? Thank you very much for your time guys!

Here is the 0808.

Oh, looks like this has been answered on another thread by grownstar

SniperElite · Mar 30, 2015

Thank you for the reply brother! Nice to hear on the 0808. Looking forward to you checking it out. Thank you for all of your help and time!

jprime84 said:
I should be able to confirm tomorrow, but I do have the 0808 on hand whos pivot looks the same as the 0450 - polished round on presentation side. On the 0808 it is the inset hexagon shaped lug as you described.

SniperElite · Apr 1, 2015

I checked the thread with these pictures in it and it does not mention the pivot on the underside. Have you had a chance to pull the pivot and check? Thank you very much for your time and help!

jprime84 said:
Here is the 0808.

Oh, looks like this has been answered on another thread by grownstar

jprime84 · Apr 1, 2015

I am starting to think I dont get your question, but I did take the knife apart.

The pivot consists of a polished male bolt that threads into a polished female bolt. The underside of both of these bolts was smooth. There are two bearing sleeves that give you the KVT technology. There was a good amount of loctite on the pivot assembly and I cant imagine it loosening or tightening on its own under normal circumstances.

grownstar · Apr 1, 2015

jprime84 said:
I am starting to think I dont get your question, but I did take the knife apart.

The pivot consists of a polished male bolt that threads into a polished female bolt. The underside of both of these bolts was smooth. There are two bearing sleeves that give you the KVT technology. There was a good amount of loctite on the pivot assembly and I cant imagine it loosening or tightening on its own under normal circumstances.

And Jeff saves the day! Props, man.

SniperElite · Apr 1, 2015

You answered the question I had. They reverted back to the six sided non presentation side pivot on the 0808. Maybe this is for aesthetics on the knife and not necessarily for functionality. I suppose with enough Loctite the whole pivot could rotate and not come loose.

Thank you very much for the time that you took to check this out for me brother! I truly appreciate it!

jprime84 said:
The underside of both of these bolts was smooth.

jprime84 · Apr 1, 2015

grownstar said:
And Jeff saves the day! Props, man.

I had actually done this already to try and lessen my detent, but figured the photo would help here.