Power Kite Forum

mbs bolts

doublespeed360 - 11-10-2010 at 05:50 PM

tell me why mbs bolts are stainless but the nuts are not?had a bi%ch of a time getting those nuts off my rockstarr hubs what a butcher job that was last december,i'm jest getting over that . know my new matrix truck nuts &bolts are nice and shiny but put a magnet up to them and up they come, i hate rust ,mbs owners check your nuts.

indigo_wolf - 11-10-2010 at 06:46 PM

Some of the older GI stuff skipped on the stainless too.

www.boltdepot.com seems to have considerably better coverage than the local big box hardware stores.

Semi local for anyone in the Nahant or outlying area.

Bolt Depot
286 Bridge Street (Rt. 3A)
North Weymouth, MA 02191

Not a showroom/walk-in type place, but they will let you place your order online on a "will call" basis so you can pick up items. Otherwise, you run into the problem with a small order would be dwarfed by minium shipping charges.

ATB,
Sam

bluefunelement - 12-10-2010 at 09:26 AM

Quote:
Originally posted by doublespeed360
...mbs owners check your nuts.


checked and they are both still there - shriveled after that last Nahant trip but still there.

Maven454 - 12-10-2010 at 09:32 AM

My understanding is that stainless on stainless can seize up. Might be why...?

B-Roc - 12-10-2010 at 09:39 AM

I hate rust. That's the reason I went with GI when I bought my board, though when I converted from their talons to velcro bindings I see the nuts they used on those are not SS and are rusting :(

indigo_wolf - 12-10-2010 at 10:59 AM

Quote:
Originally posted by Maven454
My understanding is that stainless on stainless can seize up. Might be why...?


For board applications, bearings are the only parts I can see having real problems with seizing. And those would be an outright replacement of the entire bearing when that happens.

Not sure about MBS, but most of the nuts and bolts from the last two generations have been using nylock nuts so seizure shouldn't be a real issue there (lack of metal to metal contact).

On the GI Multi-Hubs they chose not to use stainless. Unless you want to break down stuff on a regular basis, more than enough moisture forms in the nut recesses in the hubs to make short work of them fairly quickly. If rust rounds off the nut to the point where it is spinning in the hub, there is a fine opportunity for practicing for the next Blue Language Olympics when you go to disassemble them.

The same is seems to be true of the CrossAirs. Although I am not thrilled by the fact that the nut recesses on the Terraintulas are not a full surround, the open design does promote quicker drying.

Of course, I am running low on sleep this week, so I could have misunderstood your entire point. :smilegrin:

Is it time to go home yet. :yes:

ATB,
Sam

awindofchange - 12-10-2010 at 11:08 AM

Yes, stainless on stainless can seize which is why most use a stainless bolt but steel nut. If using stainless on stainless, you need to apply ample amounts of "anti-seize" compound. I have had stainless bolts / nuts that were screwed on with fingers seize to where the bolt breaks trying to get them back apart with wrenches.

indigo_wolf - 12-10-2010 at 11:30 AM

Trying to understand how that works with nylock nuts or why there would be a market for stainless nylock nuts. Wouldn't the nylon insert serve the same purpose (in addition to vibration damping) as a layer of anti-seize?

Was considering replacing the nuts on the Multi-Hubs.... either that or investing in a FG pencil brush.

ATB,
Sam

doublespeed360 - 13-10-2010 at 06:43 PM

nuts spun around in hub (plastic) had to take a hot knife cut around then get socket on it.so should i take the stainless nuts off?.on the old truck i had to wedge 2 drywall screews around the nut to keep spining, it work but i was praying too.and cursing

acampbell - 14-10-2010 at 06:41 AM

The seizing is also called "galling" and is why Flexifoil shipped "coppaslip" copper based grease with their stainless buggies for use on the hardware. You can get similar products from industrial hardware suppliers but in bigger containers that you will normally need.